MudIcon: Fix icon color when disabled

[dennisrahmen]

Description

This is a continuation of #7245 which aimed at fixing the color of a menu item that has a custom color set which then overrides the disabled color when the menu item is disabled.

In the mentioned pull request I fixed it by not propagating the custom color to the icon when the component is disabled and with that fixed it for this one component.

But since there are multiple components that use MudIcon this propagation logic would have to be added to each component so I opted to add a 'Disabled' property to the 'MudIcon' instead and propagated the disabled state from the components to the icon.

I checked all components for the use of MudIcon, especially MudTreeView and MudList since those components use multiple icons for the list items and the expansion/collapse.

List disabled with this pr:

List disabled before this pr:

How Has This Been Tested?

visually

Type of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (fix or improvement to the website or code docs)

Checklist

• The PR is submitted to the correct branch (dev).
• My code follows the code style of this project.
• I've added relevant tests.

[dennisrahmen]

@henon @JonBunator @ScarletKuro
You guys were involved in the first PR regarding this topic, I think this is a more elegant and better suited fix than the single component approach I implemented in the old PR.

I hope this is what you had in mind otherwise I am open for feedback.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.12%. Comparing base (28bc599) to head (fe12f72).
Report is 143 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #8869      +/-   ##
==========================================
+ Coverage   89.82%   90.12%   +0.29%     
==========================================
  Files         412      421       +9     
  Lines       11878    12304     +426     
  Branches     2364     2431      +67     
==========================================
+ Hits        10670    11089     +419     
+ Misses        681      666      -15     
- Partials      527      549      +22     

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[henon]

[...] so I opted to add a 'Disabled' property to the 'MudIcon' instead [...]

Good idea! Thanks for that

[JonBunator]

Looks good

[dennisrahmen]

Fixed the parts @ScarletKuro pointed out. Should be ready now.

Sorry about the tagging in the commit message 😅

[henon]

@dennisrahmen please run dotnet format and push again

[henon]

Thanks Dennis!