Auto merge of #16527 - BorisChiou:stylo/transition/shorthands, r=emilio

stylo: Bug 1353628 - Support shorthand properties for CSS Transition.

These patches add shorthand properties into TransitionProperty, so we can parse the shorthand properties properly and create transitions for them.

---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix Bug 1353628
- [X] There are tests for these changes

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tests/wpt/metadata-css/css-transitions-1_dev/html/events-001.htm.ini

@@ -1,11 +0,0 @@
-[events-001.htm]
-  type: testharness
-  [transition:padding, changing padding-left / events]
-    expected: FAIL
-
-  [transition:padding, changing padding / events]
-    expected: FAIL
-
-  [transition:padding, changing padding but not padding-bottom / events]
-    expected: FAIL
-

tests/wpt/metadata-css/css-transitions-1_dev/html/transition-property-002.htm.ini

@@ -15,9 +15,6 @@
   [parse 'foobar, all']
     expected: FAIL
 
-  [parse 'inherit']
-    expected: FAIL
-
   [parse 'initial']
     expected: FAIL