Use confirm as the default button

src/dialogs/CreateRoom.cpp

@@ -36,8 +36,8 @@ CreateRoom::CreateRoom(QWidget *parent)
         buttonLayout->setSpacing(15);
 
         confirmBtn_ = new QPushButton(tr("Create room"), this);
-        cancelBtn_  = new QPushButton(tr("Cancel"), this);
-        cancelBtn_->setDefault(true);
+        confirmBtn_->setDefault(true);
+        cancelBtn_ = new QPushButton(tr("Cancel"), this);
 
         buttonLayout->addStretch(1);
         buttonLayout->addWidget(cancelBtn_);

src/dialogs/InviteUsers.cpp

@@ -37,8 +37,8 @@ InviteUsers::InviteUsers(QWidget *parent)
         buttonLayout->setMargin(0);
 
         confirmBtn_ = new QPushButton("Invite", this);
-        cancelBtn_  = new QPushButton(tr("Cancel"), this);
-        cancelBtn_->setDefault(true);
+        confirmBtn_->setDefault(true);
+        cancelBtn_ = new QPushButton(tr("Cancel"), this);
 
         buttonLayout->addStretch(1);
         buttonLayout->setSpacing(15);

src/dialogs/JoinRoom.cpp

@@ -30,8 +30,8 @@ JoinRoom::JoinRoom(QWidget *parent)
         buttonLayout->setSpacing(15);
 
         confirmBtn_ = new QPushButton(tr("Join"), this);
-        cancelBtn_  = new QPushButton(tr("Cancel"), this);
-        cancelBtn_->setDefault(true);
+        confirmBtn_->setDefault(true);
+        cancelBtn_ = new QPushButton(tr("Cancel"), this);
 
         buttonLayout->addStretch(1);
         buttonLayout->addWidget(cancelBtn_);