feat(i18n): add Indonesian locale support

[protheeuz]

Description

Adds Indonesian (id) language support to the UI and the auto-caption generator. Translation terminology follows the official Kamus Besar Bahasa Indonesia (KBBI) standards.

Motivation

Provides native language accessibility for Indonesian users.
Reference: KBBI Daring: Used for strict technical localization (e.g., using Unduh for download, Unggah for upload, Pintasan for shortcut, and Urungkan for undo).

Type of Change

• New Feature
• Bug Fix
• Refactor / Code Cleanup
• Documentation Update

Related Issue(s)

N/A

Screenshots / Video

N/A

Testing Guide

1. Set the language to "Bahasa Indonesia" in Settings.
2. Check that "Indonesian" appears in the Captions language dropdown.

Checklist

• I have performed a self-review of my code.
• I have added any necessary screenshots or videos.
• I have linked related issue(s).

Summary by CodeRabbit

• New Features
  • Indonesian language is now available as a selectable language option throughout the application, including settings, editor, timeline, dialogs, and all UI components.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 446683c7-05e6-42c2-bcea-d67265f3c9d0

📥 Commits

Reviewing files that changed from the base of the PR and between 7ca2de2 and 520671a.

📒 Files selected for processing (11)

• src/components/video-editor/SettingsPanel.tsx
• src/contexts/I18nContext.tsx
• src/i18n/config.ts
• src/i18n/locales/id/common.json
• src/i18n/locales/id/dialogs.json
• src/i18n/locales/id/editor.json
• src/i18n/locales/id/extensions.json
• src/i18n/locales/id/launch.json
• src/i18n/locales/id/settings.json
• src/i18n/locales/id/shortcuts.json
• src/i18n/locales/id/timeline.json

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📝 Walkthrough

Walkthrough

This PR adds complete Indonesian (id) locale support to Recordly. It registers the Indonesian locale in the i18n configuration, wires translation file imports in I18nContext.tsx, updates the settings panel to include Indonesian as a selectable language, and provides eight namespace-specific Indonesian translation JSON files covering all UI surfaces.

Changes

Indonesian Locale Integration

Layer / File(s)	Summary
Locale configuration and UI integration src/i18n/config.ts, src/contexts/I18nContext.tsx, src/components/video-editor/SettingsPanel.tsx	SUPPORTED_LOCALES is updated to include "id". I18nContext.tsx imports and registers eight Indonesian JSON translation files (common, launch, editor, timeline, settings, dialogs, shortcuts, extensions). SettingsPanel.tsx adds Indonesian to the caption language options and the APP_LANGUAGE_LABELS mapping so users can select Indonesian in the UI.
Indonesian translation content across all namespaces src/i18n/locales/id/common.json, src/i18n/locales/id/dialogs.json, src/i18n/locales/id/editor.json, src/i18n/locales/id/extensions.json, src/i18n/locales/id/launch.json, src/i18n/locales/id/settings.json, src/i18n/locales/id/shortcuts.json, src/i18n/locales/id/timeline.json	Eight translation files provide Indonesian strings for core actions (save, cancel, export), recording controls, editor UI (playback, annotations, toolbar, timeline), settings (zoom, trim, speed, captions, background, export), extensions, dialogs, shortcuts, and launch-related UI. Settings translations are split across multiple line ranges and cover comprehensive options for video/editor configuration, captions, export formats, and audio controls.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• webadderallorg/Recordly#488: Extends the same i18n plumbing by registering a new locale (Italian) with updates to SettingsPanel.tsx, I18nContext.tsx, and src/i18n/config.ts.
• webadderallorg/Recordly#349: Adds Simplified Chinese locale support using the same i18n registration pattern across the same three core files.
• webadderallorg/Recordly#256: Adds Portuguese (Brazil) locale support with identical wiring pattern in SettingsPanel.tsx, I18nContext.tsx, and src/i18n/config.ts.

Suggested labels

i18n, localization

Poem

🐰 A rabbit hops through languages wide,
Indonesian words now bundled with pride!
Eight translation files hop along,
From dialogs to settings, the locale grows strong.
Indonesian speakers can now play and edit with delight! 🌍✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'feat(i18n): add Indonesian locale support' clearly and accurately summarizes the main change in the pull request, which adds Indonesian language support across multiple locale files and configuration.
Description check	✅ Passed	The pull request description covers all essential sections from the template including Description, Motivation, Type of Change, Related Issues, Testing Guide, and Checklist, with substantive content provided for each.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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