Remove all references to slack (#7233)

* Remove all references to slack

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix readme

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Cleanup migration

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Remove existing slack link from weblink store

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix type error and wording on ErrorBoundary

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Don't export forumsUrl to extension API

- Also just remove slack URL

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Update snapshots again

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Update snapshots again v3

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Revert remove slackUrl

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix filtering

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix readme

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* More of a fix

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Try again

Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Slightly better for now

Signed-off-by: Sebastian Malton <sebastian@malton.name>

---------

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/core/src/features/status-bar/__snapshots__/status-bar-items-originating-from-extensions.test.tsx.snap

@@ -108,11 +108,11 @@ exports[`status-bar-items-originating-from-extensions when application starts wh
                   If you have any questions or feedback, please join our 
                   <a
                     class="link"
-                    href="https://k8slens.dev/slack.html"
+                    href="https://forums.k8slens.dev"
                     rel="noreferrer"
                     target="_blank"
                   >
-                    Lens Community slack channel
+                    Lens Forums
                   </a>
                   .
                 </p>