manager: Improvements (#443)

* manager: bump mmrl

* manager: use ktx ext Str.toUri

* manager: add "webui-engine" from config.json

This allows the developer to override the user preference of the selected WebUI engine.

Supported engines are:

- `wx` for WebUI X
- `ksu` for the KernelSU WebUI

All not named strings will default to `wx`

R.string.use_webuix_summary needs proper translations

* manager: add support for multilingual module meta

manager/gradle/libs.versions.toml

@@ -17,7 +17,7 @@ parcelablelist = "2.0.1"
 libsu = "6.0.0"
 apksign = "1.4"
 cmaker = "1.2"
-mmrl = "1998c70b77"
+mmrl = "2bb00b3c2b"
 
 [plugins]
 agp-app = { id = "com.android.application", version.ref = "agp" }