Dark Mode UI (Classic WoW)

v1.8

- Cleaned up unitframe textures' edges up, not sure if anyone even noticed it before but for those with a keen eye, rejoice!

- More Spellbook Side Tabs darkened to accommodate further addons that add such tabs

- Color Picker Frame (like the one for chat's background) darkened

- Party Portrait Alignment

- Keyring darkened

- Actionbar Arrows and Page Number darkened