Partially revert microsoft#188964 (microsoft#188990)

Author: joyceerhl

src/vs/workbench/contrib/chat/browser/chatSlashCommandContentWidget.css

@@ -5,7 +5,6 @@
 
 .chat-slash-command-content-widget {
 	padding: 0.1em 0.3em;
-	top: 7px !important;
 	border-radius: 2px;
 	background-color: var(--vscode-textCodeBlock-background);
 	color: var(--vscode-textLink-foreground);