[stable5.1] fix: close modal after creating conversation

[backportbot]

Backport of PR #6658

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 14.54%. Comparing base (1da8da7) to head (ed77f5b).
Report is 3 commits behind head on stable5.1.

Files with missing lines	Patch %	Lines
src/services/talkService.js	0.00%	1 Missing ⚠️
src/views/EditSidebar.vue	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##           stable5.1    #6664      +/-   ##
=============================================
+ Coverage      14.51%   14.54%   +0.02%     
=============================================
  Files            210      210              
  Lines           9835     9820      -15     
  Branches        2303     2298       -5     
=============================================
  Hits            1428     1428              
+ Misses          8080     8065      -15     
  Partials         327      327              

Flag	Coverage Δ
javascript	14.54% <0.00%> (+0.02%)	⬆️

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