feat: Better error message for search screen

[g123k]

Hi everyone,

We're having server problems at the moment.
I'd like to take this opportunity to explain the errors in a little more detail and potentially allow users to send them to us:

After:

Before (in French sorry):

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 11 lines in your changes are missing coverage. Please review.

Project coverage is 7.94%. Comparing base (4d9c7fc) to head (4e6b90f).
Report is 144 commits behind head on develop.

Files	Patch %	Lines
...ib/pages/product/common/product_dialog_helper.dart	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #5298      +/-   ##
==========================================
- Coverage     9.54%   7.94%   -1.60%     
==========================================
  Files          325     368      +43     
  Lines        16411   18531    +2120     
==========================================
- Hits          1567    1473      -94     
- Misses       14844   17058    +2214     

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[teolemon]

A copy paste icon perhaps?

[g123k]

My initial idea was to add a "Send an email" button, but I think we will be spammed.
I'm not really convinced by the copy/paste button, it's too geeky