Move webapp related build files into the webapp directory

modules/webapp/tailwind.config.js

@@ -0,0 +1,30 @@
+// tailwind.config.js
+
+const colors = require('tailwindcss/colors')
+
+module.exports = {
+    variants: {
+        extend: {
+            backgroundOpacity: ['dark']
+        }
+    },
+    purge: false,
+    darkMode: 'class', // or 'media' or 'class'
+    theme: {
+        extend: {
+            colors: {
+                bluegray: colors.blueGray,
+                warmgray: colors.warmGray,
+                amber: colors.amber,
+                orange: colors.orange,
+                teal: colors.teal,
+                lime: colors.lime,
+                lightblue: colors.lightBlue
+            }
+        }
+    },
+    plugins: [
+        require('@tailwindcss/forms')
+    ]
+//    prefix: 'tw-'
+}