DDNet 14.7 released

DDNet 14.7 has been released with the following highlights:

• [Client] Allow joining and inviting others via Steam friend list [heinrich5991]

• [Client] Update mapres for the new graphics renderer [mind]

• [Client] Add demo video recorder

• [Client] Fix some broken unicode strings [TsFreddie]

• [Client] Fix game hanging on spectating person change [BannZay, Jupeyy]

• [Client] Fix front.png [Soreu]

• [Client] Don't time out so often when using HTTP downloads

• [Editor] Fix proof circle position

• [Server] Fix duplicate teamranks

• [Server] Improve database performance