Migrate all 10 voice/video components from Discord visual language to
Aether Drift design system. Zero discord-* classes or hardcoded hex
values remain in components/voice/.
Key changes:
- Status indicators use pastel accents: mint (connected/speaking),
amber (connecting/idle), rose (muted/deafened/error)
- VoiceControlBar converted to frosted glass-bubble material
- ConnectionInfoPopover and ScreenShareSettingsPopover use glass popovers
- Speaking ring glow changed from Discord green to mint (#86efac)
- Slider accents use lavender instead of blurple
- All bg/text/border tokens mapped to surface-*/txt-*/interactive-* system
Jannis Braun
7172091159