UI and error message fixes for 16k developer option

- Disallow disabling option when hardware offload
values aren't default ones. This was bypassing warning dialogue
- For ext4 format dialog, add a delete icon and change confirmation text
- Change error message when update is pending.
- Add padding to progress dialog

Test: m Settings && adb install -r $ANDROID_PRODUCT_OUT/system_ext/priv-app/Settings/Settings.apk
Bug: 295035851
Bug: 338139884
Change-Id: Ib1c3ac075a75a8515fe725103b062983ecf11fba

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

@@ -376,6 +376,13 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
                         || enableAngleController.isDefaultValue())) {
                     disableDeveloperOptions();
                 } else {
+                    // Disabling developer options in page-agnostic mode isn't supported as device
+                    // isn't in production state
+                    if (Enable16kUtils.isPageAgnosticModeOn(getContext())) {
+                        Enable16kUtils.showPageAgnosticWarning(getContext());
+                        onDisableDevelopmentOptionsRejected();
+                        return;
+                    }
                     DisableDevSettingsDialogFragment.show(this /* host */);
                 }
             }