docs(node): retire the random peer list in favour of the Sei Labs seeds - #96

Running Vale across on the following files affected by this PR:

- node/index.mdx
- node/technical-reference.mdx
- node/troubleshooting.mdx

Attempting to initialize Vale linter...
Customer vale configuration detected. Attempting to sync packages...
Packages synced successfully.
Attempting to run Vale spellcheck...
Vale spellcheck completed successfully.

node/index.mdx:
	- 64:7     Use sentence case for headings: 'Install Go'.
	- 296:6    Use sentence case for headings: 'Mempool configuration'.

node/technical-reference.mdx:
	- 126:5    Use sentence case for headings: 'seidb tooling commands'.
	- 198:5    Use sentence case for headings: 'Autobahn (GigaRouter) config generation'.

node/troubleshooting.mdx:
	- 87:4     Use sentence case for headings: 'AppHash mismatch errors'.
	- 167:5    Use sentence case for headings: 'Identifying AppHash errors'.


Found 6 suggested changes across 3 files in 668.02ms