Update Bootstrap to 5.3.0-alpha2

paige/node_modules/bootstrap/scss/mixins/_visually-hidden.scss

@@ -6,7 +6,6 @@
 // See: https://kittygiraudel.com/2016/10/13/css-hide-and-seek/
 
 @mixin visually-hidden() {
-  position: absolute !important;
   width: 1px !important;
   height: 1px !important;
   padding: 0 !important;
@@ -15,6 +14,11 @@
   clip: rect(0, 0, 0, 0) !important;
   white-space: nowrap !important;
   border: 0 !important;
+
+  // Fix for positioned table caption that could become anonymous cells
+  &:not(caption) {
+    position: absolute !important;
+  }
 }
 
 // Use to only display content when it's focused, or one of its child elements is focused