Feature: Adjust/Hide Events/Courses (updated)

[nycex]

Hey, this is an update to master of #170.

There weren't any major conflicts. To account for the change that now the link-input is changed to the copied link when copying, I created a variable to keep the originalLink around. Maybe in a later PR this behaviour could be changed such that cal.tum.app links also work as inputs such that hide, startOffset or endOffset parameters get parsed to prefill the "Adjust Courses" inputs, so that one can easily make a few changes to a link without having to redo all adjustments in the UI.

[joschahenningsen]

Thanks for the initiative! Do you want to go through review cycles or shall I take over?

[nycex]

Either way is fine for me, it might take me a couple of days to respond to reviews as I am sort of busy in the next couple of weeks, but I'd be willing to spare a bit of time for this feature as I would really love to have it.

[alexmo1997]

Is there any way to help on this? I'd really like to see this in the upcoming semester.

[kordianbruck]

@joschahenningsen do you remember what we discussed about this PR?