Add Korean translations for Android and Linux

[ivLis-Studio]

Summary

This PR adds Korean (ko_KR) translations for both Android and Linux, refreshed against the latest main branch.

Changes

• Added Android Korean string resources in android/app/src/main/res/values-ko/strings.xml
• Added Linux Korean Qt translations in linux/translations/librepods_ko_KR.ts
• Registered the Linux Korean translation in linux/CMakeLists.txt
• Translated the latest Android strings for billing, appearance, release notes, reconnection, permissions, and privacy
• Updated the Bluetooth restart message to match the current English source

Validation

• Covered every translatable Android string key in the latest default resources
• Verified Android format placeholders match the English source
• Validated the Android XML and Linux Qt TS files with xmllint
• Matched all 34 Linux messages in the existing translation set
• Successfully ran ./gradlew assembleFossDebug

[Copilot]

Pull request overview

This PR adds Korean (ko_KR) localization resources for both the Android and Linux (Qt) apps, and wires the new Linux translation into the build so it gets compiled/installed alongside existing translations.

Changes:

• Added Korean Android string resources under values-ko.
• Added a Korean Qt .ts translation file for Linux.
• Registered the new Linux translation file in the Linux CMake translation list.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
linux/translations/librepods_ko_KR.ts	Introduces Korean Qt Linguist translations for the Linux UI strings.
linux/CMakeLists.txt	Adds the Korean .ts file to TS_FILES so Qt translation targets generate/install the .qm.
android/app/src/main/res/values-ko/strings.xml	Adds Korean Android string resources matching the app’s string set.