[css-gaps-1]: Add more wpts for empty cells #12602 (#13446)

* init more wpts

* take out changes entry

---------

Co-authored-by: Sam Davis Omekara (from Dev Box) <samomekarajr@microsoft.com>

Author: oSamDavis

css-gaps-1/Overview.bs

@@ -1012,8 +1012,16 @@ Controlling Gap Decoration Visibility: The '*-rule-visibility-items' properties<
 		grid/fragmentation/grid-gap-decorations-fragmentation-025.html
 		grid/fragmentation/grid-gap-decorations-fragmentation-026.html
 		grid/fragmentation/grid-gap-decorations-fragmentation-027.html
+		grid/subgrid/subgrid-gap-decorations-019.html
+		grid/subgrid/subgrid-gap-decorations-020.html
+		grid/subgrid/subgrid-gap-decorations-021.html
+		grid/subgrid/subgrid-gap-decorations-022.html
+		grid/subgrid/subgrid-gap-decorations-023.html
+		grid/subgrid/subgrid-gap-decorations-024.html
+		grid/subgrid/subgrid-gap-decorations-025.html
 		parsing/rule-visibility-items-computed.html
 		parsing/rule-visibility-items-invalid.html
+		parsing/rule-visibility-items-shorthand.html
 		parsing/rule-visibility-items-valid.html
 	</wpt>
 
@@ -1974,5 +1982,4 @@ Changes since the <a href="https://www.w3.org/TR/2025/WD-css-gaps-1-20250417/">1
 			(<a href="https://github.com/w3c/csswg-drafts/issues/12201">Issue 12201</a>)
 		<li> Added section for gap decorations next to empty grid areas.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/12602">Issue 12602</a>)
-
 	</ul>