merge: import helix-web history into helix-web/

git-subtree-dir: helix-web
git-subtree-mainline: 21f14f8c05
git-subtree-split: 83f3120fdc

helix-web/src/index.css

@@ -0,0 +1,13 @@
+@layer theme, base, antd, components, utilities;
+@import "tailwindcss";
+
+html, body {
+    margin: 0;
+    padding: 0;
+    height: 100vh;
+    overflow: hidden;
+}
+
+#root {
+    height: 100%;
+}