* fix: remove `(http.Server).ReadHeaderTimeout`
Fixes https://github.com/coder/coder/issues/3710. It caused some race
condition for websockets where the server sent the first message.
* comment why disabled
* chore: Move httpmw to /coderd directory
httpmw is specific to coderd and should be scoped under coderd
* chore: Move httpapi to /coderd directory
httpapi is specific to coderd and should be scoped under coderd
* chore: Move database to /coderd directory
database is specific to coderd and should be scoped under coderd
* chore: Update codecov & gitattributes for generated files
* chore: Update Makefile