fix: update GitHub Actions workflows and add Kurdish translation

- Update deprecated actions:
  - actions/checkout@v2 -> v4
  - actions-rs/toolchain@v1 -> dtolnay/rust-toolchain@stable
  - peter-evans/find-comment@v2 -> v3
  - tibdex/github-app-token@v1 -> v2
  - peter-evans/repository-dispatch@v2 -> v3

- Temporarily disable appium-mobile-tests trigger (PAT_TOKEN needs workflow scope)

- Add Kurdish (Kurmancî) translation (values-ku/strings.xml)
  - 1996 strings translated from English
  - Key UI terms in Kurdish (Wallet=Cîzdan, Account=Hesab, etc.)

- Update Pezkuwi branding images

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/install/action.yml

@@ -24,11 +24,8 @@ runs:
       shell: bash
 
     - name: 🦀 Install Rust
-      uses: actions-rs/toolchain@v1
+      uses: dtolnay/rust-toolchain@stable
       with:
-        profile: minimal
-        toolchain: stable
-        override: true
         components: rustfmt, clippy
 
     - name: Add targets