feat(talkintegration): filter out event type rooms from suggestions

[miaulalala]

As discussed in nextcloud/spreed#14689

Before	After

Test event is a room created by Calendar via the Talk integration.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 22.95%. Comparing base (c674fac) to head (909f399).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
src/components/Editor/AddTalkModal.vue	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #6843      +/-   ##
============================================
- Coverage     28.68%   22.95%   -5.73%     
+ Complexity      952      476     -476     
============================================
  Files           294      252      -42     
  Lines         14558    12267    -2291     
  Branches       2351     2362      +11     
============================================
- Hits           4176     2816    -1360     
+ Misses        10040     9109     -931     
  Partials        342      342              

Flag	Coverage Δ
javascript	14.59% <0.00%> (-0.01%)	⬇️
php	59.33% <ø> (ø)

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[st3iny]

LGTM! Thanks :)