mjarr

### Description Replaces preferred room version checking from rejected [MSC3244](https://github.com/matrix-org/matrix-spec-proposals/pull/3244) with in-client checks for restricted room creation. It also no longer hardcodes restricted rooms to room version 9. #### Type...

Fixed typos, misspelled words and one severe mistranslation (outgoing).

Type-only imports

3

Currently `.guard.ts` files import needed types using normal imports, which results in `ts(1371)` and `ts(1444)` errors in my environment (svelte). Making the imports type-only would solve this issue.