[CLD-6678] Various improvements for IP filtering feature (#25485)

* Add GetInstallation function, allow IP Filtering page to fetch installation state, other fixes for IP filter feature

* Fix pipelines

* Run make build-templates

* Fixing i18n

* Fix openapi docs

* Fix openapi docs again

* make build-templates

* Update test to ensure that spinner is removed after installation becomes stable

* Fix types, style

* update openapi because I can't validate locally...

* Updates according to Matt's feedback

* Add a limit to number of times installation is requested before an error is displayed

* Make button disable immediately

* Updates based on PR feedback

* A couple missed occurrences of whitespace

* Grammar fix in failed to fetch error

---------

Co-authored-by: Gabe Jackson <3694686+gabrieljackson@users.noreply.github.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/platform/client/src/client4.ts

@@ -27,6 +27,7 @@ import {
     Feedback,
     WorkspaceDeletionRequest,
     NewsletterRequestBody,
+    Installation,
 } from '@mattermost/types/cloud';
 import {
     SelfHostedSignupForm,
@@ -3916,6 +3917,13 @@ export default class Client4 {
         );
     }
 
+    getInstallation = () => {
+        return this.doFetch<Installation>(
+            `${this.getCloudRoute()}/installation`,
+            {method: 'get'},
+        );
+    }
+
     getRenewalLink = () => {
         return this.doFetch<{renewal_link: string}>(
             `${this.getBaseRoute()}/license/renewal`,