feat(i18n): localize plugin settings for all languages (#515)

* chore(gitignore): add .worktrees/ to .gitignore

* fix(gitignore): add .worktrees/ to .gitignore

* feat(i18n): localize plugin settings

- Add missing mainTabs.plugins key in Russian locale.
- Add useTranslation to PluginSettingsTab and MobileNav.
- Add pluginSettings translations for en, ru, ja, ko, zh-CN.
- Localize the mobile navigation More button.

* fix: remove Japanese symbols in Rorean translate

* fix: fix Korean typo and localize starter plugin error

* fix(plugins): localize toggle labels and fix translation issues

* refactor(plugins): extract inline onToggle to named handleToggle

* fix(plugins): localize repo input aria-label and "tab" badge
- Replace hardcoded aria-label with t('pluginSettings.installAriaLabel')
- Replace hardcoded "tab" badge text with t('pluginSettings.tab')
- Add missing keys to all settings.json locale files

* fix(plugins): localize "running" status badge

.gitignore

@@ -134,4 +134,7 @@ tasks/
 # Translations
 !src/i18n/locales/en/tasks.json
 !src/i18n/locales/ja/tasks.json
-!src/i18n/locales/ru/tasks.json
+!src/i18n/locales/ru/tasks.json
+
+# Git worktrees
+.worktrees/