This PR:
- Removes components from being displayed in the card
- Adds a DMenu to house previous footer actions
- Allows themes to be updated from this grid, with an animation and different border to show the update is happening
- Stops position of cards changing when default changes
- Fixes outline colour not changing when default changes
- Show a global notice on the page when previewing a theme
- Allows updating a theme from the grid, and showing an indicator of what theme needs to be updated
- Moves "Set as default" to the dropdown for the theme
- Show screenshot for theme if it is available
- Prevent page reloading when updating the theme
- Fixes theme install modal on grid page
- Temporarily remove sorting of default theme to the top
