Deprecate uniforms-material theme

[zendranm]

Deprecating the Material theme, as mentioned in this issue (#1315).

• Removed the whole package from the uniforms repository
• Removed package from the labeler
• Removed Material from the Readme file
• Removed the uniforms-material package from the package.json files
• Removed theme from tsconfig references
• Removed skipTestIf from test suites

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.05%. Comparing base (c047291) to head (946faf6).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1338      +/-   ##
==========================================
+ Coverage   94.35%   95.05%   +0.69%     
==========================================
  Files         200      175      -25     
  Lines        3314     2892     -422     
  Branches      895      763     -132     
==========================================
- Hits         3127     2749     -378     
+ Misses         70       59      -11     
+ Partials      117       84      -33     

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[kestarumper]

I wonder if we should add somewhere in the docs an admonition that this theme has been deprecated.
But I don't know where since there are no dedicated pages for a theme.

[wadamek65]

@kestarumper Maybe you could add it in the installation section when picking the material theme? It's probably very niche but better than nothing I suppose.

[kestarumper]

@wadamek65, but we're getting rid of the Material tab button fully (this is because we're deleting all dependencies such as styles, etc).

[wadamek65]

@kestarumper Then another option would be modifying the README in the package itself, so at least it will be shown on the npm page of the package.

[kestarumper]

@wadamek65 well, we're deleting the README too 😅.
We planned to use the NPM deprecation message.

[wadamek65]

@kestarumper Then I'm out of ideas 😖

[Monteth]

@kestarumper We can release the last version with deprecation info and then remove the package, so in the history, there will be a readme with a message.

[ErnestTeluk]

conflict to fix