fix: chat text colors

[KaustubhKumar05]

WEB-2104

Summary	fix chat color in light theme
Type	Bug
Status	In Progress
Points	N/A
Labels	prebuilt

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Details(context, Jira ticket, how was the bug fixed, what does the new feature do)

Choose one of these(put a 'x' in the bracket):

• The change doesn't require a change to the documentation.
• The documentation is updated accordingly.

Implementation note, gotchas, related work and Future TODOs (optional)

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[github-actions]

size-limit report 📦

Path	Size
packages/hms-video-web/dist/index.cjs.js	60.95 KB (0%)
packages/hms-video-web/dist/index.js	60.75 KB (0%)
packages/hms-video-store/dist/index.cjs.js	17.77 KB (0%)
packages/hms-video-store/dist/index.js	17.54 KB (0%)
packages/roomkit-react/dist/index.cjs.js	200.46 KB (+0.01% 🔺)
packages/roomkit-react/dist/index.js	550 B (+0.19% 🔺)
packages/hms-virtual-background/dist/index.cjs.js	5.12 KB (0%)
packages/hms-virtual-background/dist/index.js	4.92 KB (0%)
packages/react-icons/dist/index.cjs.js	64.57 KB (0%)
packages/react-icons/dist/index.js	2.03 KB (0%)