fix(dm) : remove duplicate LaunchedEffect when opening DM

[ganfra]

Content

What the title says.

Motivation and context

Improve app :D

Screenshots / GIFs

Tests

• Step 1
• Step 2
• Step ...

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.08%. Comparing base (9dac27a) to head (6ad89fd).
Report is 5 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4012   +/-   ##
========================================
  Coverage    83.08%   83.08%           
========================================
  Files         1821     1821           
  Lines        46450    46450           
  Branches      5444     5444           
========================================
  Hits         38594    38594           
  Misses        5946     5946           
  Partials      1910     1910           

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[bmarty]

Thanks.
FTR I have checked all the LaunchedEffect that we have on *Node.kt and I did not find any other similar issues.