[A11y] Fix contrast on extension icons (#2203)
* Update extension icons to for a11y contrast * Fix images
Before Width: | Height: | Size: 3.1 KiB After Width: | Height: | Size: 385 B |
Before Width: | Height: | Size: 3.3 KiB After Width: | Height: | Size: 645 B |
Before Width: | Height: | Size: 3.5 KiB After Width: | Height: | Size: 553 B |
Before Width: | Height: | Size: 4.1 KiB After Width: | Height: | Size: 921 B |