Changed `code` color to be a little lighter, more contrast / easier to read (From #999 to #c3c3c3)
Added Readonly style, was white box with grey letters. Changes to Dark grey box and white letters.
Changed cursor for disabled / read-only to `not-allowed` instead of `text`
Closes#1918 -> Dropdown text was grey with a grey background.
Added Green and Yellow Text colors
Added Text-Danger
Changed Link color, to be a tad lighter
Added well/well-sm/well-lg to pterodactyl.css
Changed well to match the dark theme.
Hovering over Start / Restart show respective colors Green / Blue
