Refactor routing in App component to enhance navigation and improve error handling by integrating dynamic routes and updating the NotFound route.

node_modules/micromark-util-decode-string/dev/index.js

@@ -0,0 +1,53 @@
+import {decodeNamedCharacterReference} from 'decode-named-character-reference'
+import {decodeNumericCharacterReference} from 'micromark-util-decode-numeric-character-reference'
+import {codes, constants} from 'micromark-util-symbol'
+
+const characterEscapeOrReference =
+  /\\([!-/:-@[-`{-~])|&(#(?:\d{1,7}|x[\da-f]{1,6})|[\da-z]{1,31});/gi
+
+/**
+ * Decode markdown strings (which occur in places such as fenced code info
+ * strings, destinations, labels, and titles).
+ *
+ * The “string” content type allows character escapes and -references.
+ * This decodes those.
+ *
+ * @param {string} value
+ *   Value to decode.
+ * @returns {string}
+ *   Decoded value.
+ */
+export function decodeString(value) {
+  return value.replace(characterEscapeOrReference, decode)
+}
+
+/**
+ * @param {string} $0
+ *   Match.
+ * @param {string} $1
+ *   Character escape.
+ * @param {string} $2
+ *   Character reference.
+ * @returns {string}
+ *   Decoded value
+ */
+function decode($0, $1, $2) {
+  if ($1) {
+    // Escape.
+    return $1
+  }
+
+  // Reference.
+  const head = $2.charCodeAt(0)
+
+  if (head === codes.numberSign) {
+    const head = $2.charCodeAt(1)
+    const hex = head === codes.lowercaseX || head === codes.uppercaseX
+    return decodeNumericCharacterReference(
+      $2.slice(hex ? 2 : 1),
+      hex ? constants.numericBaseHexadecimal : constants.numericBaseDecimal
+    )
+  }
+
+  return decodeNamedCharacterReference($2) || $0
+}