Design refresh for modes that don't filter notifications

And fix a crash noticed in ZenModeAppsLinkPreferenceController

Test: atest com/android/settings/notification/modes
Fixes: 308820027
Flag: android.app.modes_ui
Change-Id: I0cfe4e10ca7ff97dac3b3b8756cc36f4d6f91ea2

src/com/android/settings/notification/modes/ZenModePeopleLinkPreferenceController.java

@@ -16,6 +16,8 @@
 
 package com.android.settings.notification.modes;
 
+import static android.app.NotificationManager.INTERRUPTION_FILTER_ALL;
+
 import static com.android.settings.notification.modes.ZenModeFragmentBase.MODE_ID;
 
 import android.content.Context;
@@ -39,6 +41,11 @@ class ZenModePeopleLinkPreferenceController extends AbstractZenModePreferenceCon
         mSummaryHelper = new ZenModeSummaryHelper(mContext, helperBackend);
     }
 
+    @Override
+    public boolean isAvailable(ZenMode zenMode) {
+        return zenMode.getRule().getInterruptionFilter() != INTERRUPTION_FILTER_ALL;
+    }
+
     @Override
     public void updateState(Preference preference, @NonNull ZenMode zenMode) {
         Bundle bundle = new Bundle();