Add a global '?' keyboard-shortcut help modal cataloguing shortcuts across the app

[Jagadeeshftw]

Description

Keyboard shortcuts now exist in multiple places (dashboard quick-actions, global g-then-letter navigation, table interactions) with no single place for a user to discover what's available. A global Shift+/ ('?') triggered modal listing every registered shortcut, grouped by context, makes the existing shortcuts discoverable.

Requirements and context

• Add a components/ui/dialog.tsx-based modal listing every shortcut grouped by area (global, dashboard, transactions)
• Bind the modal to the '?' key globally, suppressed while a text input has focus
• Keep the shortcut list data-driven so new shortcuts are easy to register going forward
• Must be accessible (WCAG 2.1 AA), responsive, and consistent with existing design tokens
• Should be tested and easy to review

Suggested execution

Fork the repo and create a branch

git checkout -b feature/global-shortcut-help-modal

Implement changes

• Update/Write: components/common/app-layout.tsx
• Add/Update tests: components/common/app-layout.test.tsx
• Add documentation: design/a11y-checklist.md
• Annotate accessibility (contrast, keyboard nav, ARIA)
• Validate responsive behavior across breakpoints (sm 640, md 768, lg 1024, xl 1280)

Test and commit

• Run tests: pnpm test (or repo's test command)
• Cover edge cases (empty/error/loading, long text, dark mode)
• Include before/after screenshots and accessibility notes

Example commit message

feat: add a global keyboard-shortcut help modal

Guidelines

• WCAG 2.1 AA compliance
• Clear documentation and spec hand-off
• Timeframe: 96 hours

[victorocheje]

@victorocheje has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @victorocheje to this issue.

[Bobai100]

@Bobai100 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer,
I'd really appreciate the opportunity to work on this issue. Having reviewed the acceptance criteria, I'm confident that I can submit a PR shortly after being assigned.
Kindly assign this issue to me.
Thank you.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Bobai100 to this issue.

[ifygreg01-best]

@ifygreg01-best has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

i would love to work on this issue, already gone through the description and have experience with it, please assign me submit in 6hrs

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ifygreg01-best to this issue.

[abrahambaba1]

@abrahambaba1 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I'd like to work on this issue as fast as possible, please assign it to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @abrahambaba1 to this issue.

[tecmalik]

@tecmalik has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

please assign me to this issue i would love to work on it

ℹ️ Repo Maintainers: To accept this application, review their application or assign @tecmalik to this issue.

[Amallcodes]

@Amallcodes has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Description
Keyboard shortcuts now exist in multiple places (dashboard quick-actions, global g-then-letter navigation, table interactions) with no single place for a user to discover what's available. A global Shift+/ ('?') triggered modal listing every registered shortcut, grouped by context, makes the existing shortcuts discoverable

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Amallcodes to this issue.

[drips-wave]

Congratulations, @victorocheje! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @victorocheje: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊