Setup TailwindCSS and DaisyUI

This commit introduces pnpm for build time dependency. While it does add
npm, it keeps it at a minimum and buildtime only to eventually allow for
automatic CI builds.

This is discussed in #133

Signed-off-by: Tobias O <tobias.olenyi@tum.de>

static/css/input.css

@@ -0,0 +1,12 @@
+@import "tailwindcss";
+
+/* Import DaisyUI plugin for Tailwind v4 */
+@plugin "daisyui";
+
+/* Custom theme configuration */
+@theme {
+    /* Custom enviPath colors */
+    --color-envipath: #222222;
+    --color-envipath-gray: #9d9d9d;
+    --color-envipath-accent: #37cdbe;
+}