fix(talk_app): Silence message polling timeout exception

[provokateurin]

Fixes #2498

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.84%. Comparing base (eccfb2c) to head (2fd52ba).
Report is 14 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2622      +/-   ##
==========================================
- Coverage   28.84%   28.84%   -0.01%     
==========================================
  Files         370      370              
  Lines      136490   136485       -5     
==========================================
- Hits        39376    39371       -5     
  Misses      97114    97114              

Flag	Coverage Δ		*Carryforward flag
account_repository	98.47% <ø> (ø)
cookie_store	99.48% <ø> (ø)		Carriedforward from eccfb2c
dashboard_app	96.05% <ø> (ø)
dynamite	31.05% <ø> (ø)		Carriedforward from eccfb2c
dynamite_end_to_end_test	61.69% <ø> (ø)		Carriedforward from eccfb2c
dynamite_runtime	85.40% <ø> (ø)		Carriedforward from eccfb2c
interceptor_http_client	97.18% <ø> (ø)		Carriedforward from eccfb2c
neon_dashboard	96.05% <ø> (ø)		Carriedforward from eccfb2c
neon_framework	61.33% <ø> (ø)
neon_http_client	97.45% <ø> (ø)		Carriedforward from eccfb2c
neon_notifications	100.00% <ø> (ø)		Carriedforward from eccfb2c
neon_storage	94.66% <ø> (ø)		Carriedforward from eccfb2c
neon_talk	99.45% <ø> (ø)		Carriedforward from eccfb2c
nextcloud	24.31% <ø> (ø)		Carriedforward from eccfb2c
notifications_app	97.40% <ø> (ø)
notifications_push_repository	98.11% <ø> (ø)
sort_box	90.90% <ø> (ø)		Carriedforward from eccfb2c
talk_app	98.94% <100.00%> (-0.01%)	⬇️

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

Files with missing lines	Coverage Δ
...ramework/packages/talk_app/lib/src/blocs/room.dart	98.55% <100.00%> (+0.01%)	⬆️