fix: PromptField design updates

[devongovett]

• Slight updates to pixel loader - shifts it 1px to the right to align with the plus button, shifts the 4 outer cells toward the center by 0.5px as requested by design.
• Added a focus ring for WHCM and (prefers-contrast: more).

[rspbot]

Build successful! 🎉

• View the storybook
• View the S2 storybook
• View the S2 docs
• View the React Aria docs

[rspbot]

Agent Skills Changes

Modified (2)

• react-aria/skills/react-aria/references/components/Separator/useSeparator.md $\color{green}{+1}$ $\color{red}{-1}$
• s2/skills/react-spectrum-s2/references/react-aria/components/Separator/useSeparator.md $\color{green}{+1}$ $\color{red}{-1}$

Install

React Spectrum S2:

npx skills add https://d1pzu54gtk2aed.cloudfront.net/pr/58497b3b8a4306795380f0cd1b11d25c0dbcd702/

React Aria:

npx skills add https://d5iwopk28bdhl.cloudfront.net/pr/58497b3b8a4306795380f0cd1b11d25c0dbcd702/

[LFDanLu]

LGTM using the emulated HCM locally, will test on my windows machine later