improvement(markdown): bump bold weight to 650 in dark mode

[waleedlatif1]

Summary

• bold text in the markdown renderers (Files .md preview + chat messages) was hard to distinguish from body text in dark mode — light-on-dark text renders perceptually heavier, compressing the 430→600 weight contrast
• bumped strong to 650 in dark mode only, mirroring how the --font-weight-* tokens already bump semibold 500→550 in dark mode; light mode stays at 600
• touched: rich-markdown-editor.css (Files), chat-content.tsx prose classes + table wrapper (chat)

Type of Change

• Improvement

Testing

Tested manually

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

[waleedlatif1]

@greptile

[greptile-apps]

Greptile Summary

This PR improves bold-text contrast in dark-mode markdown renderers. The main changes are:

• Raises file-preview markdown bold text from 600 to 650 in dark mode.
• Applies the same dark-mode weight to chat prose.
• Covers bold text inside custom chat tables.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
apps/sim/app/workspace/[workspaceId]/files/components/file-viewer/rich-markdown-editor/rich-markdown-editor.css	Adds a local dark-mode override that raises strong text to weight 650.
apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/chat-content.tsx	Raises dark-mode strong text to weight 650 in chat prose and custom tables.

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[waleedlatif1]

@cursor review

[cursor]

PR Summary

Low Risk
CSS/Tailwind typography tweaks only; no logic, auth, or data changes.

Overview
Bold markdown (strong) is harder to read against body text in dark mode because light-on-dark type looks heavier and shrinks the gap between regular (430) and semibold (600).

This PR raises bold to 650 only under .dark, aligned with existing --font-weight-* dark-mode bumps. Light mode stays at 600.

Updates land in the Files markdown preview (rich-markdown-editor.css) and chat markdown (chat-content.tsx prose utilities plus the not-prose table wrapper so bold inside tables matches).

^{Reviewed by Cursor Bugbot for commit 31f5b23. Configure here.}

[cursor]

✅ Bugbot reviewed your changes and found no new issues!

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^{Reviewed by Cursor Bugbot for commit 31f5b23. Configure here.}