feat: make workspace title link to overview

[utpalsinghdev]

Summary

From a workspace page like Peers, the only ways back to the workspace overview were the Workspaces list or the breadcrumb. The selected workspace ID already appears in the left sidebar, but it was plain text.

This PR turns that sidebar label into a link to /workspaces/$workspaceId. Visible text and the tooltip still go through demo-mode masking. The route param uses the real workspace id.

Type

• New feature

Test plan

• pnpm lint passes
• pnpm test passes
• @openconcho/web build succeeds
• Tested in browser against a local mock Honcho:
  • Opened /workspaces/ws-alpha/peers
  • Sidebar label ws-alpha was a visible link to /workspaces/ws-alpha
  • Click returned to the workspace overview
  • Enter on the focused link did the same
  • With demo mode on, the label, tooltip, and accessible name were masked (********) and the raw id was not in page text. The href still used ws-alpha.

Related issues

Closes #87