Feature/add endpoint to localize site.webmanifest (#4450)

* Add endpoint to localize site.webmanifest

* Refactor rootUrl

* Update changelog

---------

Co-authored-by: Thomas Kaul <4159106+dtslvr@users.noreply.github.com>

apps/client/project.json

@@ -146,9 +146,6 @@
           {
             "command": "shx cp apps/client/src/assets/robots.txt dist/apps/client"
           },
-          {
-            "command": "shx cp apps/client/src/assets/site.webmanifest dist/apps/client"
-          },
           {
             "command": "shx cp node_modules/ionicons/dist/index.js dist/apps/client"
           },