Add align-content in block layout (#2189)

Co-authored-by: Daniel D. Beck <daniel@ddbeck.com>

features/align-content-block.yml

@@ -0,0 +1,6 @@
+name: align-content in block layouts
+description: The `align-content` property vertically aligns content in block layouts, like it does in flex or grid layouts.
+spec: https://drafts.csswg.org/css-align-3/#align-justify-content
+group: layout
+compat_features:
+  - css.properties.align-content.block_context

features/align-content-block.yml.dist

@@ -0,0 +1,16 @@
+# Generated from: align-content-block.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: low
+  baseline_low_date: 2024-04-16
+  support:
+    chrome: "123"
+    chrome_android: "123"
+    edge: "123"
+    firefox: "125"
+    firefox_android: "125"
+    safari: "17.4"
+    safari_ios: "17.4"
+compat_features:
+  - css.properties.align-content.block_context