add error page test + error on presentation not found

[codyzu]

No description provided.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (18be754) 78.42% compared to head (9f3b7ee) 80.58%.
Report is 2 commits behind head on main.

Files	Patch %	Lines
src/components/slides/use-presentation.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #65      +/-   ##
==========================================
+ Coverage   78.42%   80.58%   +2.16%     
==========================================
  Files          52       52              
  Lines        4481     4481              
  Branches      348      352       +4     
==========================================
+ Hits         3514     3611      +97     
+ Misses        964      867      -97     
  Partials        3        3              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.