Disallow empty game names in internet lobby

[GunChleoc]

It is possible to host a new game in the internet lobby without giving it a name.

When a player starts hosting and the name is empty, we should have a prompt with an input field so that the player can provide a name without hassle.

[Toni Förster (stonerl)]

This shouldn't be possible anymore. I fixed this while working on the login box.

[GunChleoc (gunchleoc)]

I did this today while testing https://code.launchpad.net/~widelands-dev/widelands/bug-1826744-lobby-commands/+merge/368285

[Toni Förster (stonerl)]

I need to test this later, but the game name isn't empty. It uses the translated string for no name. Just open a second client. And the new game should appear in the games list.

[Toni Förster (stonerl)]

Ahh. Now I know what I fixed :D. It was possible to have more than one game without a name on the metaserver. Which I think crashed the server, or client duno anymore? This was my fix. If a game with no name already exists the next empty game will be called unnamed1, unnamed2 and so on.

[Toni Förster (stonerl)]

Empty game names were a corner case, that only occurred when no games were opened.

[GunChleoc (gunchleoc)]

Migrated to https://github.com/widelands/widelands/issues/1090