Make EmojiPicker and StickerPicker adhere to colorScheme and other theme configs

[Dojan5]

Feature Description

Currently the background of the CategoryView and the SizedBox in the chat widget do not adhere to the colour scheme, nor does the TextField in the latter have the same border radius as other similar input boxes. As a result, these elements kind of clash with the rest of the application. The search bar in the sticker picker is hard to read when you've scrolled through the stickers, and the CategoryView remains bright in dark mode.

Rationale

Bringing these in line with the rest of the UI would create a more cohesive whole, and removing the transparency in the search bar makes it a bit more accessible.

Mockup

Additional Context

No response

[Dojan5]

Apologies if this isn't the right tag for this, I wasn't entirely sure how to label it.

I forked the project and created the following branch: https://github.com/Dojan5/fluffychat/tree/chat-ui-fixes

[hallo43]

Apologies if this isn't the right tag for this, I wasn't entirely sure how to label it.

I forked the project and created the following branch: https://github.com/Dojan5/fluffychat/tree/chat-ui-fixes

good job.
can you build and run on Android with the latest gradle? i tried run on iOS is Ok but Android is not.

[Dojan5]

Do you get any particular error on Android? I don't have any Android build tools set up, but I can give it a go!