updated the appliesTo for align-content (#721)

### Description

Updated appliesTo field for CSS property `align-content`

### Motivation

Working on [Issue 32662](mdn/content#32662)

### Related issues and pull requests

- [Content PR](mdn/content#32862)
- [Firefox release note PR](mdn/content#32863)
- [BCD PR](mdn/browser-compat-data#22702)
- [Second BCD PR](mdn/browser-compat-data#22757)

css/properties.json

@@ -1713,7 +1713,7 @@
       "CSS Box Alignment"
     ],
     "initial": "normal",
-    "appliesto": "multilineFlexContainers",
+    "appliesto": "blockContainersMultiColumnContainersFlexContainersGridContainers",
     "computed": "asSpecified",
     "order": "uniqueOrder",
     "status": "standard",

css/properties.schema.json

@@ -200,6 +200,7 @@
         "blockContainersExceptMultiColumnContainers",
         "blockContainersExceptTableWrappers",
         "blockContainersFlexContainersGridContainers",
+        "blockContainersMultiColumnContainersFlexContainersGridContainers",
         "blockElementsInNormalFlow",
         "blockLevelElements",
         "blockLevelBoxesAndAbsolutelyPositionedBoxesAndGridItems",