Link Button: Add semantic Link Buttons to all themes (uui). Align component with Figma

[DzmitryTrubchyk]

Add more semantic variants to component for all themes

Find design here

All themes. In details, have to be added color variants:

• Critical
• Accent
• White (Figma) Contrast variant should be deprecated and deleted in 2-3 month (TBD)

Loveship Dark theme. Improve Secondary variant (TBD, secondary palette is not support this yet, have to discuss) Find design here