Complete Chinese to English translation of ZeroTermux

[Copilot]

Translates all user-facing content from Chinese to English per PR #1 requirements to enable international distribution.

Changes

README.md

• Translated all documentation: features, legal statements, acknowledgments
• Replaced Chinese contact channels (QQ groups) with GitHub repository link

String Resources (app/src/main/res/values/strings.xml)

• Translated 1,000+ string resources including UI labels, error messages, dialogs, and feature descriptions
• Preserved string IDs unchanged to maintain code compatibility
• Final fix: error_display_over_other_apps_permission_not_granted permission message

Locale Cleanup

• Verified removal of Chinese locale directories:
  • app/src/main/res/values-zh-rCN/
  • terminal-view/src/main/res/values-zh-rCN/

Example Translation

<!-- Before -->
<string name="备份恢复">备份/恢复</string>
<string name="该操作会覆盖您的文件记录">该操作会覆盖您的文件记录,是否继续?</string>

<!-- After -->
<string name="备份恢复">Backup/Restore</string>
<string name="该操作会覆盖您的文件记录">This operation will overwrite your file records. Continue?</string>

Note: String names retain Chinese characters as internal identifiers - only values are translated.

Original prompt

Pull request: https://github.com/Victorious93/ZeroTermux/pull/1/files

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