removed from:
- emoji panel scrollbars
- emoji category labels
- splitter image handles
- textfield setTextColor impl
small change to the category separator label for better contrast /
readability in dark mode.
removed setTextColor completely from TextField. Doesn't appear to be in
use anywhere, and focus going more toward qss themeing from qproperty
setting.
Respect system styling
Increase size of emojis (to remove empty space)
Add hover effect (partially adresses #41)
Less hardcoding of sizes
Use emoji font (color)