UI: Add more spinners, make elements more responsive

[Amogh-Bharadwaj]

• Let's add more spinner/loading displays for click events
• Add hover functionality for clickable elements
• Do some more linking - mirror names should link to the mirror page
• Check if any other intuitive behaviours can be implemented.

[serprex]

Logs icon should have a change of background color to slightly darker gray on hover, like how delete has a light red circle fade in