feat: add dialogs to menubar

can't put dialogs inside menubar components so we import each dialog
dynamically

src/components/dialogs/OpenImage.tsx

@@ -0,0 +1,18 @@
+import { DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
+import { Button } from "@/components/ui/button";
+
+function OpenImage() {
+	return (
+		<DialogContent>
+			<DialogHeader>
+				<DialogTitle>Open image</DialogTitle>
+				<DialogDescription>Open your image to load as blocks into the canvas</DialogDescription>
+			</DialogHeader>
+			<DialogFooter>
+				<Button type="submit">Submit</Button>
+			</DialogFooter>
+		</DialogContent>
+	);
+}
+
+export default OpenImage;