ChatGPT Auto-Answer should not be posted when image (#1018)

* Move link detection into separate class

* Remove unused method and fix javadocs

* Skip chatgpt response if message contains image or link

* Fix sonarlint issues

* Move fixing encoding issues to its own PR

* Remove star import

* Move context logic into custom method

* Fix reviews

* Fix reviews

* Rename LinkDetections to LinkDetection

Author: SquidXTV

build.gradle

@@ -86,12 +86,4 @@ subprojects {
     test {
         useJUnitPlatform()
     }
-
-    compileJava {
-        options.encoding = "UTF-8"
-    }
-
-    compileTestJava {
-        options.encoding = "UTF-8"
-    }
 }