More minor issue fixes

* Move Joining state change sooner in the code to prevent an issue where
failing to connect multiple times in a row doesn't change the state (as
it goes from CouldNotConnect -> CouldNotConnect which doesn't trigger a
state changed callback)
* Prevent double clicking too fast on a room in the lobby from causing
issues
* Lobby no longer closes when joining a room

src/network/room_member.h

@@ -187,4 +187,30 @@ private:
     std::unique_ptr<RoomMemberImpl> room_member_impl;
 };
 
+static const char* GetStateStr(const RoomMember::State& s) {
+    switch (s) {
+    case RoomMember::State::Idle:
+        return "Idle";
+    case RoomMember::State::Error:
+        return "Error";
+    case RoomMember::State::Joining:
+        return "Joining";
+    case RoomMember::State::Joined:
+        return "Joined";
+    case RoomMember::State::LostConnection:
+        return "LostConnection";
+    case RoomMember::State::NameCollision:
+        return "NameCollision";
+    case RoomMember::State::MacCollision:
+        return "MacCollision";
+    case RoomMember::State::WrongVersion:
+        return "WrongVersion";
+    case RoomMember::State::WrongPassword:
+        return "WrongPassword";
+    case RoomMember::State::CouldNotConnect:
+        return "CouldNotConnect";
+    }
+    return "Unknown";
+}
+
 } // namespace Network