Renaming css modules

[rorticus]

Type: feature

The following has been addressed in the PR:

• There is a related issue
• All code matches the style guide
• Unit or Functional tests are included in the PR

Description:

Renaming CSS files to .m.css for css modules.

Note that this can't be merged until dojo/grunt-dojo2#124 is :)

[rorticus]

(note that the CI failure is typedoc)

[bitpshr]

As long as each example page still works and the CI passes once the grunt-dojo2 updates land, this looks good.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@bd7924c). Click here to learn what that means.
The diff coverage is 100%.

@@           Coverage Diff           @@
##             master    #85   +/-   ##
=======================================
  Coverage          ?   100%           
=======================================
  Files             ?     13           
  Lines             ?    573           
  Branches          ?    168           
=======================================
  Hits              ?    573           
  Misses            ?      0           
  Partials          ?      0

Impacted Files	Coverage Δ
src/combobox/ResultItem.ts	100% <100%> (ø)
src/dialog/Dialog.ts	100% <100%> (ø)
src/slider/Slider.ts	100% <100%> (ø)
src/slidepane/SlidePane.ts	100% <100%> (ø)
src/checkbox/Checkbox.ts	100% <100%> (ø)
src/textinput/TextInput.ts	100% <100%> (ø)
src/radio/Radio.ts	100% <100%> (ø)
src/combobox/ComboBox.ts	100% <100%> (ø)
src/textarea/Textarea.ts	100% <100%> (ø)
src/combobox/ResultMenu.ts	100% <100%> (ø)
... and 2 more

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[tomdye]

Can you check that the widget.css file still loads the widget css correctly after this change. We need to make sure it's still copied over correctly as this is likely the only remaining special case.

[rorticus]

@tomdye , the widgets.css is OK because its being copied over manually by the Gruntfile in here. 👍