Core: Fix server_connect_bar being blank in CommonClient

[remyjette]

What is this fixing or adding?

Pre-KivyMD the server connect bar would be pre-populated with the last server the user had connected to (via self.ctx.suggested_address) or archipelago.gg: if that was empty.

Post-KivyMD, the server connect bar is always blank.

I tried setting text manually instead of via the constructor, and it works now.

How was this tested?

Launched CommonClient.py. Saw my last server in the connect bar. Connected to that, then disconnected and connected to a different server. Closed and relaunched the client, saw the second server now populated in the connect bar.

If this makes graphical changes, please attach screenshots.

Fresh launch of CommonClient.py:

[Rooby-Roo]

I am not fluent enough in Kivy/MD to know exactly why this change fixes things, but I was able to replicate this and confirm that it now works.

This should be labeled as a bugfix, I think.

[remyjette]

From Silvris in the discord:

Ah, so that works but there's a better fix
I waited to PR to see if we were gonna need another bulk fix PR like the last two
Basically I fucked up the kwargs on ResizableTextField so none of them are being handled

I'm still going to leave this PR up until/unless the better fix PR is created and merged, since we should have at least some fix go in before the next release.

[remyjette]

#4903 merged and is a better fix, closing