Overhaul of Student Notebook UI/UX

Student notebook main menu:

[x] Go to spawn realm
[x] Join classroom (list the player's instanced realms that they created and also implement a system that teachers can use to instance restricted realms with an access code)
[x] My coordinates (add to this the realm ID/name, the ability to delete specific entries, the UTM and lat/long coordinates [if available for the realm])
[x] View tasks
[x] Report
[x] Place a marker

ubc-minetest-classroom / minetest_classroom