fix(neon_dashboard): Only load widgets once

[provokateurin]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.38%. Comparing base (b6f3965) to head (d5af53a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1867   +/-   ##
=======================================
  Coverage   28.38%   28.38%           
=======================================
  Files         201      201           
  Lines       67322    67322           
=======================================
  Hits        19109    19109           
  Misses      48213    48213           

Flag	Coverage Δ		*Carryforward flag
dynamite	35.88% <ø> (ø)		Carriedforward from b6f3965
dynamite_end_to_end_test	60.88% <ø> (ø)		Carriedforward from b6f3965
dynamite_runtime	57.68% <ø> (ø)		Carriedforward from b6f3965
neon_dashboard	92.56% <100.00%> (ø)
neon_framework	37.32% <ø> (ø)		Carriedforward from b6f3965
neon_talk	100.00% <ø> (ø)		Carriedforward from b6f3965
nextcloud	25.69% <ø> (ø)		Carriedforward from b6f3965

*This pull request uses carry forward flags. Click here to find out more.

Files	Coverage Δ
...s/neon/neon_dashboard/lib/src/blocs/dashboard.dart	100.00% <100.00%> (ø)