fix: SPID logo retrieval

[shadowsheep1]

Short description

This PR adds missing SPID provider logos and fixes the retrieval them.

How to test

Uninstall App IO if previously installed. Try a SPID login with App IO. In the SPID IdP selection screen you should see all providers logo.

Demo

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 70.02%. Comparing base (16809ea) to head (38bda48).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #374      +/-   ##
==========================================
- Coverage   70.06%   70.02%   -0.05%     
==========================================
  Files         151      151              
  Lines        4791     4794       +3     
  Branches      552      573      +21     
==========================================
  Hits         3357     3357              
+ Misses       1433     1363      -70     
- Partials        1       74      +73     

Files	Coverage Δ
src/routers/services_metadata.ts	49.50% <0.00%> (-1.52%)	⬇️

... and 23 files with indirect coverage changes

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[Ladirico]

LGTM!