Replace permalinks angular ctrl with stimulus

app/assets/javascripts/admin/enterprises/controllers/permalink_controller.js.coffee

@@ -1,27 +0,0 @@
-angular.module("admin.enterprises")
-  .controller "permalinkCtrl", ($scope, PermalinkChecker) ->
-    # locals
-    initialPermalink = $scope.Enterprise.permalink
-    pendingRequest = null
-
-    # variables on $scope
-    $scope.availablility = ""
-    $scope.checking = false
-
-    $scope.$watch "Enterprise.permalink", (newValue, oldValue) ->
-      if newValue == initialPermalink
-        $scope.availability = ""
-        return
-
-      $scope.checking = true
-      pendingRequest = PermalinkChecker.check(newValue)
-
-      pendingRequest.then (data) ->
-        if data.permalink == initialPermalink
-          $scope.availability = ""
-        else
-          $scope.availability = data.available
-        $scope.Enterprise.permalink = data.permalink
-        $scope.checking = false
-      , (data) ->
-        # Do nothing (this is hopefully an aborted request)