feat(webapp): github app installation flow #3451

Job	Run time
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	2m 19s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	5m 1s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	5m 16s
typecheck / typecheck	5m 43s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	2m 17s
units / packages / 🧪 Unit Tests: Packages (1, 1)	3m 27s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 16s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 20s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 51s
units / internal / 🧪 Unit Tests: Internal (7, 8)	2m 17s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 11s
units / internal / 🧪 Unit Tests: Internal (3, 8)	3m 51s
units / internal / 🧪 Unit Tests: Internal (8, 8)	1m 54s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 46s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 31s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 33s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	2m 43s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	5m 25s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	7m 10s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	2m 45s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 13s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	5m 29s
units / packages / 📊 Merge Reports	25s
units / internal / 📊 Merge Reports	19s
units / webapp / 📊 Merge Reports	48s
	1h 31m 50s

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