Allow players to bookmark levels #105
Description
Is your feature request related to a problem? Please describe.
Sometimes it's hard to keep track of levels you want to play, or maybe keep track of your favourite levels, so having a way to bookmark it in the site would be good.
Describe the solution you'd like
There should be a way to add a level to the bookmark in the levels list and the main details page.
We wil store this in a table called levels_bookmark. We could probably also use this table to store skipped levels #98 and also show the levels in the same way.
We may expand on having custom named bookmark/list for players. (Example "favourite levels", "cool levels")
There might be an option for public/private lists in the future too but for now the bookmarked list will be private