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perf: Impove text/font rasterization and rendering perf by reducing sizes lossless (#3687)

Issue was raised by @JSLegendDev on the discord https://discord.com/channels/1195771303215513671/1471972758136164606/1471985432568004649 

Safari doesn't do as well when re-rastering and uploading that to the GPU causing visible hitches in games which is unacceptable. This can be worked around in the current version by reducing `quality` or making the text as static as possible for unchanging glyphs.

This PR improves the texture usage and reduces the size of text needed to raster for equivalent or better quality text 

## Changes:

- Internally we use the smallest possible bitmap to represent the text
- Caching lookups are improved by using actual hashing with numbers

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