Refactor apps to be an app launcher (#930)

* Refactor apps to be an app launcher

* Restore rdfa for the dokieli tile

* Update apps.html

Co-authored-by: Sarven Capadisli <info@csarven.ca>

* Remove Pod Pro from featured apps

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Co-authored-by: Sarven Capadisli <info@csarven.ca>

Author: matthieubosquet