don't send some "activity no longer available" errors (#9100)

src/App.native.tsx

···
 }
 if (isAndroid) {
   // iOS is handled by the config plugin -sfn
-  ScreenOrientation.lockAsync(ScreenOrientation.OrientationLock.PORTRAIT_UP)
+  ScreenOrientation.lockAsync(
+    ScreenOrientation.OrientationLock.PORTRAIT_UP,
+  ).catch(error =>
+    logger.debug('Could not lock orientation', {safeMessage: error}),
+  )
 }
 
 /**

src/alf/util/systemUI.ts

···
 import * as SystemUI from 'expo-system-ui'
 import {type Theme} from '@bsky.app/alf'
 
+import {logger} from '#/logger'
 import {isAndroid} from '#/platform/detection'
 
 export function setSystemUITheme(themeType: 'theme' | 'lightbox', t: Theme) {
   if (isAndroid) {
-    if (themeType === 'theme') {
-      SystemUI.setBackgroundColorAsync(t.atoms.bg.backgroundColor)
-    } else {
-      SystemUI.setBackgroundColorAsync('black')
+    try {
+      if (themeType === 'theme') {
+        SystemUI.setBackgroundColorAsync(t.atoms.bg.backgroundColor)
+      } else {
+        SystemUI.setBackgroundColorAsync('black')
+      }
+    } catch (error) {
+      // Can reject with 'The current activity is no longer available' - no big deal
+      logger.debug('Could not set system UI theme', {safeMessage: error})
     }
   }
 }