feat: plugin marketplace #167

Job	Run time
Plugins / Lint (Simple Plugins)	36s
UI / Test	20s
Skit / Lint (fmt + clippy)	4m 26s
UI / Lint (TypeScript + ESLint)	36s
Skit / Test	9m 34s
UI / Build	31s
Plugins / Lint (Sherpa-ONNX Plugins)	52s
Plugins / Lint (NLLB)	2m 24s
Plugins / Lint (Whisper)	35s
E2E / Playwright E2E	4m 45s
Skit / Build	12m 34s
Plugins / Format Check	16s
All Checks Passed	4s
	37m 33s

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