refactor: Rename all remaining conduwuit references to Continuwuity

Also adds an alias for the old binary name to the dockerfile

Supersedes !1485
Closes #1536
Closes #2277

src/admin/query/resolver.rs

@@ -1,5 +1,5 @@
 use clap::Subcommand;
-use conduwuit::{Err, Result, utils::time};
+use continuwuity::{Err, Result, utils::time};
 use resolvematrix::resolution::Resolution;
 use ruma::OwnedServerName;