feat(footer): add Documentation and Contact support links

[nunoeufrasio]

What

Adds two links to the footer Platform section, and a Documentation entry to the navbar More menu:

• Documentation — links to the in-app /docs documentation (footer + navbar More menu, below About).
• Contact support — opens the Intercom messenger, using the same useIntercom().show() mechanism as the "Contact our team" button from fix(for-companies): replace broken /contact links with Intercom #174.

How

• Footer "Contact support" mirrors the For Companies CTA: useIntercom() is resolved in footer.vue's setup() with a local openIntercom() handler. The menu config stays declarative via a new intercom: true link variant.
• Documentation points to the internal /docs route (same-tab NuxtLink), per @mlehotskylf — the external docs.linuxfoundation.org CF docs are being retired.
• Left-aligned the footer action buttons so they line up with the anchor links (kept self-start from the mobile-stacking change on main) — also fixes pre-existing drift on "Start a Fundraise".

Related / dependency

• Follows fix(for-companies): replace broken /contact links with Intercom #174 (Contact our team → Intercom).
• ⚠️ Depends on feat(docs): add in-app documentation system #166, which introduces the in-app /docs system (AppRoute.Docs + pages) and also adds the navbar Documentation entry. Until feat(docs): add in-app documentation system #166 merges, /docs will 404. Whoever merges second should reconcile the duplicate Documentation entry in header.ts.

Checklist

• Type-check + lint clean (0 errors)
• No new files (license headers N/A)
• Build passes; rebased on latest main
• Diff small (~30 lines)

Note: clicking "Contact support" fires window.Intercom('show'); the messenger only renders on allowlisted Intercom domains (not localhost), same as #174.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR updates the frontend navigation to add a Documentation link (opening the Linux Foundation docs in a new tab) and a Contact support footer entry that opens Intercom, aligning footer behavior with the existing Intercom CTA introduced in #174.

Changes:

• Added a Documentation entry to the header “More” menu with an external flag to render target="_blank" + rel="noopener noreferrer".
• Added Documentation and Contact support entries to the footer “Platform” section, with Contact support opening Intercom via useIntercom().show().
• Extended footer link typing to support a declarative intercom: true link variant.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
frontend/app/types/footer.types.ts	Extends footer menu link union type to support an intercom: true variant.
frontend/app/config/menu/header.ts	Adds “Documentation” child item and introduces optional external flag on header children.
frontend/app/config/menu/footer.ts	Adds “Documentation” (external) and “Contact support” (Intercom) entries to footer Platform links.
frontend/app/components/shared/layout/footer.vue	Renders Intercom footer link as a button and wires it to useIntercom().show(); aligns button text styling.
frontend/app/components/shared/layout/components/mobile-menu.vue	Applies target/rel for external “More” children links in the mobile menu.
frontend/app/components/shared/layout/components/desktop-nav.vue	Applies target/rel for external “More” children links in the desktop dropdown.

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[lewisojile]

LGTM

[nunoeufrasio]

Review Feedback Addressed

Commit: e8f89d4

Changes Made

• config/menu/footer.ts: Documentation link now points to the in-app /docs route instead of the deprecated docs.linuxfoundation.org CF docs (per @mlehotskylf)
• config/menu/header.ts: More-menu Documentation entry now points to /docs; dropped the now-unused external flag (per @mlehotskylf)
• layout/components/desktop-nav.vue, mobile-menu.vue: reverted the external new-tab handling — no longer needed for an in-app link

Both Documentation links are now internal links to the in-app docs system introduced in #166. "Contact support" (Intercom) is unchanged.

Threads Resolved

2 of 2 unresolved threads addressed in this iteration.

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.