Add a done button to vision setting pages in setup flow

Root cause: User feels confused because the particular screen doesn't have a back button but at that moment of the setup flow the regular UI gestures didn't even work.
Solution: Add a done button to the vision settings pages for clearer navigation. This change combines parts of commit 5e931b2c23 and commit dd2ec775c8.

Bug: 262995569
Test: make RunSettingsRoboTests ROBOTEST_FILTER=FragmentForSetupWizardTest
Change-Id: Id3a0d78389e0e6c11b5b5cf016b37673fde7f286
Merged-In: Id3a0d78389e0e6c11b5b5cf016b37673fde7f286
(cherry picked from commit dd2ec775c8)

src/com/android/settings/accessibility/TextReadingResetController.java

@@ -32,6 +32,7 @@ import com.android.settingslib.widget.LayoutPreference;
  * The controller of the reset button in the text and reading options page.
  */
 class TextReadingResetController extends BasePreferenceController {
+    private boolean mIsVisible;
     private final View.OnClickListener mOnResetClickListener;
 
     @EntryPoint
@@ -65,6 +66,12 @@ class TextReadingResetController extends BasePreferenceController {
                         AccessibilityStatsLogUtils.convertToEntryPoint(mEntryPoint));
             }
         });
+
+        setVisible(screen, getPreferenceKey(), mIsVisible);
+    }
+
+    void setVisible(boolean isVisible) {
+        mIsVisible = isVisible;
     }
 
     /**