[7869] Feature flag: EMBEDDED_DASHBOARD_ENABLED

[n-lark]

Description

See #7869

FF here: https://eu.posthog.com/project/2225/feature_flags/232270

Added to all 3 projects:

Related Issue(s)

Resolves #7869

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production
• Link to Changelog Entry PR, or note why one is not needed.

Labels

• Includes a DB migration? -> add the area:migration label

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.60%. Comparing base (ca9224b) to head (b9e4ca6).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7877   +/-   ##
=======================================
  Coverage   75.60%   75.60%           
=======================================
  Files         432      432           
  Lines       23046    23046           
  Branches     6111     6111           
=======================================
  Hits        17424    17424           
  Misses       5622     5622           

Flag	Coverage Δ
backend	75.60% <ø> (ø)

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