PM-37705: Feat: Hide Send navigation when DISABLE_SEND policy is enabled

[david-livefront]

🎟️ Tracking

PM-37705

📔 Objective

This PR hides the Send Navigation icon from the app when the DISABLE_SEND policy is enabled.

📸 Screenshots

Before	After

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.79%. Comparing base (e949dd7) to head (d3b2650).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6945      +/-   ##
==========================================
- Coverage   86.30%   85.79%   -0.52%     
==========================================
  Files         873      899      +26     
  Lines       63220    64226    +1006     
  Branches     9165     9179      +14     
==========================================
+ Hits        54563    55100     +537     
- Misses       5508     5976     +468     
- Partials     3149     3150       +1     

Flag	Coverage Δ
app-data	16.72% <0.00%> (-0.34%)	⬇️
app-ui-auth-tools	19.18% <0.00%> (-0.02%)	⬇️
app-ui-platform	16.51% <100.00%> (+0.35%)	⬆️
app-ui-vault	28.00% <0.00%> (-0.01%)	⬇️
authenticator	6.27% <0.00%> (-0.01%)	⬇️
lib-core-network-bridge	4.07% <0.00%> (-0.01%)	⬇️
lib-data-ui	1.12% <0.00%> (+<0.01%)	⬆️

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