Small ui fixes on new main ui (#1995)

* Return to main activity from notifications activity on back button is pressed

* Make nearby info image a little far from nearby text, to prevent wrong clicks

Author: neslihanturan

app/src/main/java/fr/free/nrw/commons/notification/NotificationActivity.java

@@ -26,6 +26,7 @@
 import butterknife.ButterKnife;
 import fr.free.nrw.commons.R;
 import fr.free.nrw.commons.Utils;
+import fr.free.nrw.commons.contributions.MainActivity;
 import fr.free.nrw.commons.mwapi.MediaWikiApi;
 import fr.free.nrw.commons.theme.NavigationBaseActivity;
 import fr.free.nrw.commons.utils.NetworkUtils;
@@ -146,4 +147,10 @@ private void initializeAndSetNotificationList(List<Notification> notificationLis
                 .commit();
         mNotificationWorkerFragment.setNotificationList(notificationList);
     }
+
+    @Override
+    public void onBackPressed() {
+        startActivityWithFlags(
+                this, MainActivity.class, Intent.FLAG_ACTIVITY_CLEAR_TOP,
+                Intent.FLAG_ACTIVITY_SINGLE_TOP);    }
 }

app/src/main/res/layout/custom_nearby_tab_layout.xml

@@ -17,8 +17,8 @@
         android:layout_width="18dp"
         android:layout_height="18dp"
         android:id="@+id/nearby_info_image"
-        android:layout_marginStart="8dp"
-        android:layout_marginLeft="8dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginLeft="16dp"
         app:srcCompat="@drawable/ic_info_outline_white_24dp"
         />
 </LinearLayout>