Merge pull request commons-app#1391 from commons-app/fixNearbyBugCausedThemeChange

Fix NPE in nearby fragment

Author: neslihanturan

app/src/main/java/fr/free/nrw/commons/nearby/NearbyMapFragment.java

@@ -579,7 +579,9 @@ public void prepareViewsForSheetPosition(int bottomSheetState) {
                 transparentView.setAlpha(0);
                 closeFabs(isFabOpen);
                 hideFAB();
-                this.getView().requestFocus();
+                if (this.getView() != null) {
+                    this.getView().requestFocus();
+                }
                 break;
         }
     }