added release note for vertical-align as shorthand property (#43485)

Author: dletorey

files/en-us/mozilla/firefox/releases/149/index.md

@@ -41,6 +41,8 @@ Firefox 149 is the current [Beta version of Firefox](https://www.firefox.com/en-
 
 - The {{CSSXRef("shape-outside")}} CSS property now supports the [`xywh()`](/en-US/docs/Web/CSS/Reference/Values/basic-shape/xywh) function as a value. This allows you to define a shape for inline content to wrap around, using distances from the left (`x`) and top (`y`) edges of the containing block and a width (`w`) and height (`h`). ([Firefox bug 1983187](https://bugzil.la/1983187)).
 
+- The {{CSSXRef("vertical-align")}} CSS property is now a shorthand property for {{CSSXRef("alignment-baseline")}}, {{CSSXRef("baseline-shift")}} and {{CSSXRef("baseline-source")}} properties. ([Firefox bug 1830771](https://bugzil.la/1830771)).
+
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