Eliminate auto capitalization of thread names

[gm3197]

Removing auto-capitalization of thread names because it is not necessary and forces this design decision on developers.

[dokterbob]

Hi @gm3197, thanks for your patch!

As it stands, applying it would unexpectedly change the UX for pre-existing users, while we do not (yet) have a clear-cut/well-documented way of directly controlling thread names. If there were, developers can just implement capitalisation on their own and we could document this as a breaking change, giving an example of how to do this.

Is there any chance you'd be able to have a look at this ticket? #1097

With a clear and sensible API to be able to control chat titles (in a way where it's not glitching, e.g. changing erratically), merging your patch would be a no-brainer.

Curious to hear what @willydouhard images here.