Don't load kitten picture from third party site

[paskal]

@akellbl4, it doesn't work as the file is not stored in /web/. Can you please check what should be done to make it appropriately included?

[github-actions]

size-limit report 📦

Path	Size
public/embed.mjs	2.03 KB (0%)
public/remark.mjs	73.45 KB (+0.01% 🔺)
public/remark.css	8.26 KB (0%)
public/last-comments.mjs	35.72 KB (0%)
public/last-comments.css	3.75 KB (0%)
public/deleteme.mjs	12.07 KB (0%)
public/counter.mjs	751 B (0%)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (82c6178) 61.47% compared to head (9fa222a) 61.47%.
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #1736    +/-   ##
========================================
  Coverage   61.47%   61.47%            
========================================
  Files         132      132            
  Lines        2998     2998            
  Branches      757      715    -42     
========================================
  Hits         1843     1843            
- Misses       1038     1151   +113     
+ Partials      117        4   -113     

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