Debug: clear contacts cache

app/src/main/java/eu/faircode/email/ActivityView.java

@@ -683,6 +683,14 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
                     drawerLayout.closeDrawer(drawerContainer);
                 onMenuSetup();
             }
+        }, new Runnable() {
+            @Override
+            public void run() {
+                if (BuildConfig.DEBUG) {
+                    ContactInfo.clearCache(ActivityView.this, true);
+                    ToastEx.makeText(ActivityView.this, R.string.title_completed, Toast.LENGTH_LONG).show();
+                }
+            }
         }));
 
         adapterNavMenu.set(menus, nav_expanded);