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/configuration.mdx

@@ -9,7 +9,7 @@ Continuwuity uses a TOML config file for all of its settings. This is the recomm
 You can specify the config file to be used by Continuwuity with the command-line flag `-c` or `--config`:
 
 ```bash
-./conduwuit -c /path/to/continuwuity.toml
+./continuwuity -c /path/to/continuwuity.toml
 ```
 
 Alternatively, you can use the environment variable `CONTINUWUITY_CONFIG` to specify the config file to be used; see [the section on environment variables](#environment-variables) for more information.
@@ -80,10 +80,10 @@ Therefore, you can use environment variables or the options flags to override va
 Continuwuity supports running admin commands on startup using the command-line flag `--execute`. This is treated as a standard admin command, without the need for the `!admin` prefix. For example, to create a new user:
 
 ```bash
-# Equivalent to `!admin users create_user june`
-./conduwuit --execute "users create_user june"
-INFO conduwuit_service::admin::startup: Startup command #0 completed:
-Created user with user_id: @june:girlboss.ceo and password: `<redacted>`
+# Equivalent to `!admin users create_user jade`
+./continuwuity --execute "users create_user jade"
+INFO continuwuity_service::admin::startup: Startup command #0 completed:
+Created user with user_id: @jade:continuwuity.org and password: `<redacted>`
 ```
 
 Alternatively, you can configure `CONTINUWUITY_ADMIN_EXECUTE` or the config file value `admin_execute` with a list of commands.