Include backdrop classes in css build

tailwind.config.js

@@ -32,4 +32,27 @@ module.exports = {
     },
   },
   plugins: [tailwindForms, tailwindScrollbars],
-};
+  // always include these in build as classes are dynamically constructed
+  safelist: [
+    'backdrop-blur',
+    'backdrop-blur-sm',
+    'backdrop-blur-md',
+    'backdrop-blur-xl',
+    'backdrop-saturate-0',
+    'backdrop-saturate-50',
+    'backdrop-saturate-100',
+    'backdrop-saturate-150',
+    'backdrop-saturate-200',
+    'backdrop-brightness-0',
+    'backdrop-brightness-50',
+    'backdrop-brightness-75',
+    'backdrop-brightness-90',
+    'backdrop-brightness-95',
+    'backdrop-brightness-100',
+    'backdrop-brightness-105',
+    'backdrop-brightness-110',
+    'backdrop-brightness-125',
+    'backdrop-brightness-150',
+    'backdrop-brightness-200',
+  ],
+}