Add diagnostic for missing SMAPI

[erri120]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 5.55556% with 51 lines in your changes are missing coverage. Please review.

Project coverage is 56.67%. Comparing base (5a7f934) to head (bc49239).

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1026      +/-   ##
==========================================
+ Coverage   56.09%   56.67%   +0.57%     
==========================================
  Files         645      648       +3     
  Lines       21259    21311      +52     
  Branches     1657     1661       +4     
==========================================
+ Hits        11926    12077     +151     
+ Misses       8931     8836      -95     
+ Partials      402      398       -4     

Flag	Coverage Δ
Linux	55.98% <5.55%> (-0.11%)	⬇️
Windows	55.90% <5.55%> (∅)
clean_environment_tests	56.65% <5.55%> (+0.55%)	⬆️
macOS	55.39% <5.55%> (?)
network_tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...rc/Games/NexusMods.Games.StardewValley/Services.cs	100.00% <100.00%> (ø)
.../Games/NexusMods.Games.StardewValley/TypeFinder.cs	100.00% <100.00%> (ø)
...ames.StardewValley/Installers/SMAPIModInstaller.cs	0.00% <0.00%> (ø)
...exusMods.Games.StardewValley/Models/SMAPIMarker.cs	0.00% <0.00%> (ø)
...sMods.Games.StardewValley/Models/SMAPIModMarker.cs	0.00% <0.00%> (ø)
...s.Games.StardewValley/Installers/SMAPIInstaller.cs	0.00% <0.00%> (ø)
...Games/NexusMods.Games.StardewValley/Diagnostics.cs	0.00% <0.00%> (ø)
...ames.StardewValley/Emitters/MissingSMAPIEmitter.cs	0.00% <0.00%> (ø)

... and 35 files with indirect coverage changes