Fix font size adjustment issues - increase text sizes for better accessibility

[Copilot]

The font size adjustment feature was not providing sufficient text size increases, particularly when users selected "特大" (Extra Large). Users reported that even the largest font setting was still too small for comfortable reading.

Problem

The original font size dimensions were too small for accessibility needs:

• 小 (Small): 14dp
• 中 (Medium): 16dp
• 大 (Large): 18dp
• 特大 (Extra Large): 20dp

Additionally, many UI components used fixed text styles that didn't scale with user preferences, creating inconsistent text sizing throughout the app.

Solution

Increased base font dimensions by +4dp across all sizes:

• 小 (Small): 14dp → 18dp (+29% improvement)
• 中 (Medium): 16dp → 20dp (+25% improvement)
• 大 (Large): 18dp → 22dp (+22% improvement)
• 特大 (Extra Large): 20dp → 24dp (+20% improvement)

Updated key text styles to use larger base sizes:

• BodyText: Now uses mediumTextSize (20dp) instead of smallTextSize (18dp)
• SubTitleText: Now uses largeTextSize (22dp) instead of mediumTextSize (20dp)
• TopicTitle: Now uses largeTextSize (22dp) instead of mediumTextSize (20dp)

Impact

• Better accessibility: All text sizes now meet improved readability standards
• Significant improvement for 特大 setting: Users now get 24dp text instead of 20dp
• Consistent experience: Both user-controlled and fixed text elements are larger
• Broad coverage: Improvements affect topic titles, reply content, user names, settings text, notifications, and more
• Maintains compatibility: Preserves existing responsive behavior while improving baseline sizes

The changes are minimal (7 lines across 2 files) but provide substantial readability improvements throughout the app.

Fixes #39.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• jitpack.io
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED -XX:MaxMetaspaceSize=512m --add-exports=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.13-bin/5xuhj0ry160q40clulazy9h7d/gradle-8.13/lib/gradle-daemon-main-8.13.jar -javaagent:/home/REDACTED/.gradle/wrapper/dists/gradle-8.13-bin/5xuhj0ry160q40clulazy9h7d/gradle-8.13/lib/agents/gradle-instrumentation-agent-8.13.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.13 (dns block)
• maven.aliyun.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED --add-opens=java.xml/javax.xml.namespace=ALL-UNNAMED -XX:MaxMetaspaceSize=512m --add-exports=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED --add-exports=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.13-bin/5xuhj0ry160q40clulazy9h7d/gradle-8.13/lib/gradle-daemon-main-8.13.jar -javaagent:/home/REDACTED/.gradle/wrapper/dists/gradle-8.13-bin/5xuhj0ry160q40clulazy9h7d/gradle-8.13/lib/agents/gradle-instrumentation-agent-8.13.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.13 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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[Copilot]

Pull Request Overview

This PR improves text accessibility by increasing font sizes across all size categories and updating key text styles to use larger base sizes. The changes address user feedback that the "特大" (Extra Large) font setting was insufficient for comfortable reading.

• Increased all font size dimensions by +4dp (20-29% improvement)
• Updated three key text styles to use larger base sizes for better readability
• Maintained existing responsive behavior while improving baseline accessibility

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
app/src/main/res/values/dimens.xml	Increased all font size dimensions by +4dp across small, medium, large, and extra large sizes
app/src/main/res/values/styles.xml	Updated SubTitleText, BodyText, and TopicTitle styles to use larger base font sizes