🎨 Palette: [UX improvement] Add accessibility labels to icon-only buttons

[TargetMisser]

💡 What:
Added accessible={true}, accessibilityRole="button", and appropriate localized accessibilityLabel properties to icon-only buttons in the main navigation components (App.tsx App Bar and DrawerMenu.tsx close button).

🎯 Why:
In React Native, <TouchableOpacity> components that only contain visual icons (like <MaterialIcons>) are invisible to screen readers or are announced vaguely (e.g., as "button" with no context). Adding these labels ensures visually impaired users navigating via VoiceOver or TalkBack can understand what these core navigation buttons do (e.g., "Menu", "Back", "Close menu").

📸 Before/After:

• Before: Screen readers focus on the menu button but do not announce its purpose.
• After: Screen readers announce "Menu, button", "Indietro, button", etc., depending on the current locale.

♿ Accessibility:

• Added 3 new translation keys (appBarBack, appBarMenu, drawerClose) to both Italian and English translation files to ensure proper localization of accessibility labels.
• Applied explicit ARIA-equivalent props (accessible, accessibilityRole, accessibilityLabel) to the three main navigation buttons.
• Documented this learning pattern in .jules/palette.md for future reference.

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PR created automatically by Jules for task 6823235713658802991 started by @TargetMisser

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Project	Deployment	Actions	Updated (UTC)
flight-work-app	Ready	Preview, Comment, Open in v0	Apr 21, 2026 1:18am