Indium – Indium 1.0.35 for Minecraft 1.21.x/Sodium 0.5.11

– Bump version, mark 1.21.1 as supported (comp500)
– Readme fix (#337) (PukPukov)
– Update to support FRAPI 3.4.0 (#335) (PepperCode1)

See the full changes on Github: https://github.com/comp500/Indium/commits/1.0.35+mc1.21