Adds support for public routes on shared boards (#22710)

* Adds support for public routes on shared boards

* Fix linter

* Address review comments

* Update playbooks registerProduct call

* Use boards product config for setting

* update additional product locations for parameter changes

* fixes for read-only when logged in

* turn off global header and don't initialize plugin if shared board

* fix unit tests

* revert package-lock.json

* more fixes

* Remove FF check for system console setting for boards

* update tests, Product boards is displayed in system console

* only check products section of config

* update test for config change

---------

Co-authored-by: Scott Bishel <scott.bishel@mattermost.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/channels/src/plugins/pluggable/pluggable.tsx

@@ -41,7 +41,7 @@ type Props = {
      *
      * Only supported when pluggableName is "Product".
      */
-    subComponentName?: 'mainComponent' | 'headerCentreComponent' | 'headerRightComponent';
+    subComponentName?: 'mainComponent' | 'publicComponent' | 'headerCentreComponent' | 'headerRightComponent';
 
     /*
      * Accept any other prop to pass onto the plugin component

webapp/channels/src/plugins/registry.ts

@@ -986,6 +986,7 @@ export default class PluginRegistry {
         'showTeamSidebar',
         'showAppBar',
         'wrapped',
+        'publicComponent',
     ], ({
         baseURL,
         switcherIcon,
@@ -997,6 +998,7 @@ export default class PluginRegistry {
         showTeamSidebar = false,
         showAppBar = false,
         wrapped = true,
+        publicComponent,
     }: Omit<ProductComponent, 'id' | 'pluginId'>) => {
         const id = generateId();
 
@@ -1016,6 +1018,7 @@ export default class PluginRegistry {
                 showTeamSidebar,
                 showAppBar,
                 wrapped,
+                publicComponent,
             },
         });