feature: Make time selection modal look better

[JessicaF]

Make this pop-up look better (make sure to consider both mobile and laptop view)

• Cancel and Ok buttons could be better positioned and designed
• The pencil icon should be clearer and more obvious on its functionality
• "Select time" text is rather small
• The second image shows what happens when you click on the pencil icon - this screen can also be redesigned to reduce padding and make the clock symbol and buttons look nicer

[francojreyes]

can you pls pls pls move it out of the sidebar (maybe where the search is rn)