chore: make plugin wp.org release ready

[up1512001]

• changer plugin version to 1.0.0
• update release workflow to only include necessary files
• removed load_plugin_textdomain() as per https://make.wordpress.org/core/2024/10/21/i18n-improvements-6-7/
• fix readme.txt issues.

[Copilot]

Pull Request Overview

This PR prepares the OneUpdate plugin for WordPress.org release by standardizing the version to 1.0.0 and updating release configurations. The changes focus on version consistency, WordPress.org compliance, and optimizing the release package.

• Updated all version references from 1.0.2 to 1.0.0 across all configuration files
• Removed deprecated load_plugin_textdomain() function call following WordPress 6.7 i18n improvements
• Modified release workflow to include only necessary files for WordPress.org distribution

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
readme.txt	Updated version, PHP requirements, and WordPress compatibility for wp.org standards
package.json	Version downgrade to 1.0.0 for initial release
oneupdate.php	Plugin header updates and removal of deprecated text domain loading
composer.json	Version synchronization with other files
.github/workflows/release_on_tag.yml	Optimized release package by including readme.txt and excluding languages directory

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