vite

* replace next with vite
* disable strictmode (it interferes with collaboration in dev mode)

client/postcss.config.js

@@ -0,0 +1,14 @@
+module.exports = {
+  plugins: {
+    "postcss-preset-mantine": {},
+    "postcss-simple-vars": {
+      variables: {
+        "mantine-breakpoint-xs": "36em",
+        "mantine-breakpoint-sm": "48em",
+        "mantine-breakpoint-md": "62em",
+        "mantine-breakpoint-lg": "75em",
+        "mantine-breakpoint-xl": "88em",
+      },
+    },
+  },
+};