fix: status bar transparent with white background (#25)

[uri-ustrell]

Description

The Android status bar was appearing white when the app opened.

Root cause

The app has edgeToEdgeEnabled=true in android/gradle.properties (set by Expo prebuild), which forces the status bar to be fully transparent. Because the root JSX used a bare Fragment <> with no background color, the transparent status bar was showing the white window background behind it.

All previous approaches (statusBarColor in styles.xml, StatusBar.setBackgroundColor() at runtime) had no effect because edge-to-edge mode ignores them entirely.

Fix

Wrap the root JSX in a <View> with backgroundColor set to the app's brand color (#2797AF). The transparent status bar now shows the teal background through it instead of white. The existing marginTop: Constants.statusBarHeight on the WebView already ensured the content sat correctly below the status bar area.

Changes

• App.js: wrap <> fragment with <View style={{ flex: 1, backgroundColor: '#2797AF' }}> and add corresponding appContainer style

Closes #25