Docs improvements for v4 self hosting #2927

Job	Run time
typecheck / typecheck	5m 0s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	2m 19s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	2m 10s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	6m 48s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 40s
units / internal / 🧪 Unit Tests: Internal (1, 8)	3m 39s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 4s
units / packages / 🧪 Unit Tests: Packages (1, 1)	2m 47s
units / internal / 🧪 Unit Tests: Internal (3, 8)	3m 37s
units / webapp / 🧪 Unit Tests: Webapp (1, 10)	2m 7s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 56s
units / webapp / 🧪 Unit Tests: Webapp (2, 10)	2m 9s
units / internal / 🧪 Unit Tests: Internal (5, 8)	3m 47s
units / webapp / 🧪 Unit Tests: Webapp (3, 10)	2m 39s
units / internal / 🧪 Unit Tests: Internal (6, 8)	3m 0s
units / webapp / 🧪 Unit Tests: Webapp (4, 10)	4m 54s
units / internal / 🧪 Unit Tests: Internal (7, 8)	3m 51s
units / webapp / 🧪 Unit Tests: Webapp (5, 10)	2m 36s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 2s
units / webapp / 🧪 Unit Tests: Webapp (6, 10)	5m 55s
units / webapp / 🧪 Unit Tests: Webapp (7, 10)	2m 9s
units / webapp / 🧪 Unit Tests: Webapp (8, 10)	2m 21s
units / webapp / 🧪 Unit Tests: Webapp (9, 10)	2m 13s
units / webapp / 🧪 Unit Tests: Webapp (10, 10)	2m 1s
units / packages / 📊 Merge Reports	18s
units / internal / 📊 Merge Reports	18s
units / webapp / 📊 Merge Reports	24s
	1h 22m 44s

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