Prevent boards product from being included automatically (#23539)

* Prevent boards product from being included automatically

* Fix config diff test

* Update prepackaged plugin version

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

* Readd boards/dist to the gitignore

* Does not enable the focalboard plugin by default

* Update plugin version to v7.10.3

---------

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

webapp/package.json

@@ -52,7 +52,6 @@
     "platform/client",
     "platform/components",
     "platform/types",
-    "playbooks",
-    "boards"
+    "playbooks"
   ]
 }