Remove line about contacting us from error message

[mlqn]

Description

Related Issue(s)

• Create generic error handling mechanism #10735

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)
• Cypress tests run green locally (https://github.com/Altinn/altinn-studio/tree/master/frontend/testing/cypress#run-altinn-studio-tests)

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.01% ⚠️

Comparison is base (ef70d8b) 76.50% compared to head (7dd9659) 76.50%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11000      +/-   ##
==========================================
- Coverage   76.50%   76.50%   -0.01%     
==========================================
  Files         660      660              
  Lines       10991    10990       -1     
  Branches     1483     1483              
==========================================
- Hits         8409     8408       -1     
  Misses       2333     2333              
  Partials      249      249              

Files Changed	Coverage Δ
...es/shared/src/components/ErrorBoundaryFallback.tsx	91.66% <100.00%> (ø)
...d/packages/shared/src/contexts/ServicesContext.tsx	81.48% <100.00%> (-0.67%)	⬇️

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[framitdavid]

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