Improve UI/UX

[hyblocker]

Currently, the UI/UX of the over is quite poor and needs a massive amount of work to become better and more user friendly.

Plans:

• Rework the structure of the main page without continuous calibration.
• Rework the structure of the main page with continuous calibration.
• Make the pages during calibration more descriptive and helpful so that one doesn't need guides.
• Add localisation support for non-English speakers.
• Add visual GIFs or something similar to demonstrate how to calibrate two playspaces.

[hyblocker]

• Make the UI a lot more coherent. Currently a lot of settings and info is haphazardly scattered around the UI with no rhyme or reason.
• Consider making a design document to make it easier for other contributors to contribute UI changes while trying to avoid the getting back to this point.

[hyblocker]

This likely will make building the library more complex as I want to incorporate good font rendering, which means I'd have to integrate Freetype with all bells and whistles (nightmare). Might require changing the build system to CMake to make maintaining the library easier.