Use vscode icon for trash

extensions/ql-vscode/media/dark/trash.svg

@@ -1,3 +0,0 @@
-<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path fill-rule="evenodd" clip-rule="evenodd" d="M10 3H12H13V4H12V13L11 14H4L3 13V4H2V3H5V2C5 1.73478 5.10531 1.48038 5.29285 1.29285C5.48038 1.10531 5.73478 1 6 1H9C9.26522 1 9.51962 1.10531 9.70715 1.29285C9.89469 1.48038 10 1.73478 10 2V3ZM9 2H6V3H9V2ZM4 13H11V4H4V13ZM6 5H5V12H6V5ZM7 5H8V12H7V5ZM9 5H10V12H9V5Z" fill="#C5C5C5"/>
-</svg>

extensions/ql-vscode/media/light/trash.svg

@@ -1,3 +0,0 @@
-<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path fill-rule="evenodd" clip-rule="evenodd" d="M10.0002 3H12.0002H13.0002V4H12.0002V13L11.0002 14H4.00024L3.00024 13V4H2.00024V3H5.00024V2C5.00024 1.73478 5.10555 1.48038 5.29309 1.29285C5.48063 1.10531 5.73503 1 6.00024 1H9.00024C9.26546 1 9.51986 1.10531 9.7074 1.29285C9.89493 1.48038 10.0002 1.73478 10.0002 2V3ZM9.00024 2H6.00024V3H9.00024V2ZM4.00024 13H11.0002V4H4.00024V13ZM6.00024 5H5.00024V12H6.00024V5ZM7.00024 5H8.00024V12H7.00024V5ZM9.00024 5H10.0002V12H9.00024V5Z" fill="#424242"/>
-</svg>

extensions/ql-vscode/package.json

@@ -540,10 +540,7 @@
       {
         "command": "codeQLQueryHistory.removeHistoryItem",
         "title": "Remove History Item(s)",
-        "icon": {
-          "light": "media/light/trash.svg",
-          "dark": "media/dark/trash.svg"
-        }
+        "icon": "$(trash)"
       },
       {
         "command": "codeQLQueryHistory.sortByName",