feature(slides): Add RevealJS and have a layout ready for it

.vscode/astro.code-snippets

@@ -0,0 +1,24 @@
+{
+	// Place your snippets for astro here. Each snippet is defined under a snippet name and has a prefix, body and 
+	// description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are:
+	// $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the 
+	// same ids are connected.
+	// Example:
+	// "Print to console": {
+	// 	"prefix": "log",
+	// 	"body": [
+	// 		"console.log('$1');",
+	// 		"$2"
+	// 	],
+	// 	"description": "Log output to console"
+	// }
+  "Slide Stub": {
+    "prefix": "slide",
+    "body": [
+      "<section>",
+      "  <h2>$1</h2>",
+      "  <p>$2</p>",
+      "</section>"
+    ]
+  }
+}