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

docs/deploying/nomad.mdx

@@ -112,7 +112,7 @@ EOF
         data = <<EOF
 {{key "config/continuwuity"}}
 EOF
-        destination = "local/conduwuit.toml"
+        destination = "local/continuwuity.toml"
       }
 ...
 ```