Add meta tag per handler

[Snailedlt]

Would be nice to have meta information per handler, so that links to a handler show picture and name of the game/handler instead of a generic text about the hub website as a whole.

Currently it only shows like this (on Discord):

Instead, it should show information about the specified handler

[Snailedlt]

We might be able to use something like react-helmet for this
https://codeburst.io/how-to-control-head-tags-in-react-seo-friendly-8264e1194880

[Snailedlt]

Another alternative for server side meta tags etc...
https://github.com/veliovgroup/spiderable-middleware

Found on this great repo: https://github.com/Urigo/awesome-meteor