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

node_modules/oniguruma-to-es/dist/cjs/transform.d.ts

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+export type RegexAst = {
+    type: "Regex";
+    parent: null;
+    pattern: any;
+    flags: any;
+    options: any;
+    _strategy: string | null;
+};
+/**
+@typedef {{
+  type: 'Regex';
+  parent: null;
+  pattern: Object;
+  flags: Object;
+  options: Object;
+  _strategy: string | null;
+}} RegexAst
+*/
+/**
+Transforms an Oniguruma AST in-place to a [Regex+](https://github.com/slevithan/regex) AST.
+Assumes target ES2025, expecting the generator to down-convert to the desired JS target version.
+
+Regex+'s syntax and behavior is a strict superset of native JavaScript, so the AST is very close
+to representing native ES2025 `RegExp` but with some added features (atomic groups, possessive
+quantifiers, recursion). The AST doesn't use some of Regex+'s extended features like flag x or
+subroutines because they follow PCRE behavior and work somewhat differently than in Oniguruma. The
+AST represents what's needed to precisely reproduce Oniguruma behavior using Regex+.
+@param {import('./parse.js').OnigurumaAst} ast
+@param {{
+  accuracy?: keyof Accuracy;
+  asciiWordBoundaries?: boolean;
+  avoidSubclass?: boolean;
+  bestEffortTarget?: keyof Target;
+}} [options]
+@returns {RegexAst}
+*/
+export function transform(ast: import("./parse.js").OnigurumaAst, options?: {
+    accuracy?: "default" | "strict";
+    asciiWordBoundaries?: boolean;
+    avoidSubclass?: boolean;
+    bestEffortTarget?: "auto" | "ES2025" | "ES2024" | "ES2018";
+}): RegexAst;