refactor: Move rendering to freya-core

[marc2332]

Cleans up code and also makes it possible for #702

[github-actions]

Benchmark for e758383

Click to view benchmark

Test	Base	PR	%
benchmarks/alignments=true size=21845 depth=8 wide=4 mode=not cached	107.7±2.09ms	109.0±0.45ms	+1.21%
benchmarks/size=100001 depth=2 wide=100000 mode=not cached	24.8±1.77ms	26.3±1.83ms	+6.05%
benchmarks/size=10001 depth=2 wide=10000 mode=not cached	1478.6±37.77µs	1516.9±22.86µs	+2.59%
benchmarks/size=1001 depth=2 wide=1000 mode=not cached	138.1±1.29µs	142.2±1.31µs	+2.97%
benchmarks/size=131071 depth=17 wide=2 mode=not cached	24.4±0.89ms	24.6±0.36ms	+0.82%
benchmarks/size=16383 depth=14 wide=2 mode=not cached	1726.6±69.81µs	1763.5±26.74µs	+2.14%
benchmarks/size=19531 depth=7 wide=5 mode=cached	310.7±4.11µs	358.4±14.05µs	+15.35%
benchmarks/size=19531 depth=7 wide=5 mode=not cached	2.7±0.05ms	2.7±0.10ms	0.00%
benchmarks/size=4095 depth=12 wide=2 mode=not cached	420.2±133.10µs	422.8±146.01µs	+0.62%
benchmarks/size=54241 depth=5 wide=15 mode=cached	252.8±16.92µs	298.9±32.48µs	+18.24%
benchmarks/size=54241 depth=5 wide=15 mode=not cached	6.6±0.18ms	6.7±0.44ms	+1.52%

[codecov]

Codecov Report

Attention: Patch coverage is 14.28571% with 132 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@3070eae). Learn more about missing BASE report.

Files	Patch %	Lines
crates/core/src/skia/skia_renderer/renderer.rs	0.00%	105 Missing ⚠️
crates/renderer/src/app.rs	0.00%	25 Missing ⚠️
crates/core/src/render.rs	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #712   +/-   ##
=======================================
  Coverage        ?   74.04%           
=======================================
  Files           ?      196           
  Lines           ?    20395           
  Branches        ?        0           
=======================================
  Hits            ?    15101           
  Misses          ?     5294           
  Partials        ?        0           

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