style: Fix EOF, remove trailing space and add braces

src/widget/contentdialogmanager.cpp

@@ -83,15 +83,17 @@ GroupWidget* ContentDialogManager::addGroupToDialog(ContentDialog* dialog,
 void ContentDialogManager::focusFriend(int friendId)
 {
     auto dialog = focusDialog(friendId, friendDialogs);
-    if (dialog != nullptr)
+    if (dialog != nullptr) {
         dialog->focusFriend(friendId);
+    }
 }
 
 void ContentDialogManager::focusGroup(int groupId)
 {
     auto dialog = focusDialog(groupId, groupDialogs);
-    if (dialog != nullptr)
+    if (dialog != nullptr) {
         dialog->focusGroup(groupId);
+    }
 }
 
 /**