chore(deps): upgrade to vite 4

Currently peer vite@"^2.0.0 || ^3.0.0" from vite-plugin-markdown@2.1.0 is happening, but this is a minor dependency. Install with --legacy-peer-deps.

Author: openscript

.devcontainer/devcontainer.json

@@ -22,7 +22,7 @@
   // "forwardPorts": [],
 
   // Use 'postCreateCommand' to run commands after the container is created.
-  "postCreateCommand": "npm install"
+  "postCreateCommand": "npm install --legacy-peer-deps"
 
   // Uncomment to connect as a non-root user. See https://aka.ms/vscode-remote/containers/non-root.
   // "remoteUser": "node"