feat: move proxy settings page to deployment options (#8246)

* feat: Move workspace proxy page to deployment options

Workspace proxy settings page is now an admin feature

* WorkspaceProxy response extends region

site/src/xServices/auth/authXService.ts

@@ -19,6 +19,7 @@ export const checks = {
   viewUpdateCheck: "viewUpdateCheck",
   viewGitAuthConfig: "viewGitAuthConfig",
   viewDeploymentStats: "viewDeploymentStats",
+  editWorkspaceProxies: "editWorkspaceProxies",
 } as const
 
 export const permissionsToCheck = {
@@ -88,6 +89,12 @@ export const permissionsToCheck = {
     },
     action: "read",
   },
+  [checks.editWorkspaceProxies]: {
+    object: {
+      resource_type: "workspace_proxy",
+    },
+    action: "create",
+  },
 } as const
 
 export type Permissions = Record<keyof typeof permissionsToCheck, boolean>