fix: check if photo property is set before downloading

[SebastianKrupinski]

Check if has photo DAV property is set to true before trying to download the photo, to stop 404 errors.

Before:

After:

[codecov]

Codecov Report

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

Project coverage is 11.61%. Comparing base (b91012f) to head (f33c353).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/models/contact.js	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##               main    #4249       +/-   ##
=============================================
- Coverage     66.20%   11.61%   -54.59%     
  Complexity      262      262               
=============================================
  Files            25      117       +92     
  Lines           787     5441     +4654     
  Branches          0     1180     +1180     
=============================================
+ Hits            521      632      +111     
- Misses          266     4687     +4421     
- Partials          0      122      +122     

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[SebastianKrupinski]

/backport to stable6.1

[SebastianKrupinski]

/backport to stable6.0

[SebastianKrupinski]

/backport to stable5.5