move pdf navigation to top or side

[abhitrueprogrammer]

Is your feature request related to a problem? Please describe.
Currently we have to scroll way down to get to PDF viewer controls. Make them at the top so we can do stuff like fullscreen paper easily

Describe the solution you'd like

Additional context
https://papers.codechefvit.com/paper/6891bfcaf6766a56a03f5b89

example of a sample paper

[IshanJ25]

[renne-ahuja]

please assign it to me!