feat(web): Added admin user config to user settings (#15380)

* feat(web): Added admin user config to user settings

* feat (web) - cleaned up the files and added tests

* feat (web) - added missing files

* feat (web) - updated per review comments

* feat (web) - e2e admin command test failures

open-api/immich-openapi-specs.json

@@ -15131,6 +15131,9 @@
             "format": "email",
             "type": "string"
           },
+          "isAdmin": {
+            "type": "boolean"
+          },
           "name": {
             "type": "string"
           },
@@ -15281,6 +15284,9 @@
             "format": "email",
             "type": "string"
           },
+          "isAdmin": {
+            "type": "boolean"
+          },
           "name": {
             "type": "string"
           },