Fix UI issues in localization

- Some of the locales don't display entire text and BigTextStyle doesn't
display ellipsis for them. Removing bigText.
- Fixing strings to display 4KB
- Reduce string for bootloader unlock title

Bug: 345291007
Bug: 343893991
Bug: 343815951
Test: m Settings && adb install -r $ANDROID_PRODUCT_OUT/system_ext/priv-app/Settings/Settings.apk
Flag: EXEMPT bugfix
Change-Id: I3e5bf9bf70be1240cfe7d3a381bb8fef62ce2efa

src/com/android/settings/development/PageAgnosticNotificationService.java

@@ -96,13 +96,13 @@ public class PageAgnosticNotificationService extends Service {
                                 notifyPendingIntent)
                         .build();
 
+        // TODO:(b/349860833) Change text style to BigTextStyle once the ellipsis issue is fixed.
         Notification.Builder builder =
                 new Notification.Builder(this, NOTIFICATION_CHANNEL_ID)
                         .setContentTitle(title)
                         .setContentText(text)
                         .setOngoing(true)
                         .setSmallIcon(R.drawable.ic_settings_24dp)
-                        .setStyle(new Notification.BigTextStyle().bigText(text))
                         .setContentIntent(notifyPendingIntent)
                         .addAction(action);