It appears you have a well-structured Git repository with various files, including SVG icons and HTML documents. Here's a brief overview:

backend/postcss.config.js

@@ -0,0 +1,21 @@
+module.exports = {
+  plugins: {
+    'tailwindcss': {},
+    'autoprefixer': {},
+    'cssnano': {
+      preset: ['default', {
+        discardComments: {
+          removeAll: true,
+        },
+        normalizeWhitespace: true,
+        minifySelectors: true,
+        minifyParams: true,
+        mergeRules: true,
+        discardDuplicates: true,
+        discardEmpty: true,
+        reduceIdents: false, // Behalte CSS Custom Properties
+        zindex: false, // Verhindere z-index Optimierungen die Layouts brechen können
+      }]
+    }
+  }
+}