View Content and Communities, Request to Join Communities, and Approve/Deny Requests

[KrNel]

Some important New Features were added that bring better UX and interactivity to the site.

New Features

• View Content from Steem
  Click on a post title on the Kurate page, and you can view the content of that post!

• Communities Page to View Communities
  You can view the Newly Created and Recently Active communities. They display some data about each community, such as the number of Posts and Users, when it was Created, and who the Owner is.

• User Send Request to Join a Community
  If you're not a member of a community, you can click on Join. It will then change to Requested. If you're already a member, you won't see any option to join.

• Community Staff can Approve or Deny a Request to Join
  In the Manage section, there is now a Join Requests section above the Members list. You can see the User who requested to join the community, When they requested to join, and the actions to Approve or Deny the request to join.

Bug Fixes

• Home page not updating when going back to the page
  The Home page wasn't fetching new data when the route/page was revisited in the same session. removed an if() that was preventing new data fetches solved the issue.

Other Changes/Improvements

• Users and Join Request info for Community listed
  Some minor changes, but important for the UX (user experience), are some stats for the communities you can see in the Manage page. In addition to Posts, the Users and Join Requests are now visible. They will update on-the-fly when you manually add/delete a user, or when approving or denying a user who has requested to join.

I forgot to merge the previous PR, so some of changes I made since then are in there as commits as well, when they should be here for the new functionality since the last PR description:

• Commit: feat(PostDetails): View the content of posts
• Commit: feat(Join Communities): Ability to request to join a community
• Commit: feat(Approving Requests): Users who request to join a group can be approved
• Commit: feat(Deny Requests): Requests to join communities can be denied/rejected