fix(sidebar): links overflow

[rafae2k]

Fixes #5031, #5105, #4973, #4635, #2221

Changes proposed in this pull request:

• Fix content overflow of links within sidebar component keeping icon and link inline
• Add property word-break: break-all to .sidebar li class

[rafae2k]

@schalkneethling although it's a very old problem that's been addressed in the frontend roadmap, I think this is a easy fix to be implemented in time a redesign is not ready yet , that will improve accessibility and readability of MDN.

[schalkneethling]

Hey @rafae2k,

Thank you so much for your contribution and your patience. The MDN platform is undergoing a redesign at the moment and the sidebars are changing a lot as part of it. This issue has already been addressed there so, unfortunately, merging this will only get overridden in a few weeks with the redesign.

As such I am going to have to close this pull request. MY apologies and I hope this does not discourage you from contributing in the future.