Don't require right-click for operations on files/pads in the web gui

Hi all!

Problem

Requiring right-click functionality to do operations on files (share, access etc) makes it harder to use when right-click isn't working properly in the browser for some reason.

Example:

Context

I don't know exactly why it happens on some of my firefox installs, but right-clicking in the cryptpad web gui causes the regular firefox context-menu (save page as, view page source etc) to be overlayed over the cryptpad specific one (share, access etc). So, to get at the cryptpad gui context-menu I have to use window manager specific tricks to close the window manager/firefox context menu without closing the cryptpad context menu.

Proposal

I don't have this problem with nextcloud because that provides separate buttons which work without right-click to do operations on files. For instance, you select a file and then you (left-) click a button to get the context menu. I can only imagine that this would be a benefit for mobile users as well. Example screenshot:

Thanks for reading!