web: Use monorepo package utilities to build packages (#14159)

* web: Format live reload package.

* web: Format package.json.

* web: Revise globals.

* web: Build entrypoints with a single ESBuild context. Clean up entrypoints.

* web: WIP Prepare monorepo package for use.

* web: Update build paths. Fix types.

* web: WIP Add monorepo dependency.

* web: Use monorepo utilities when building.

* web: Fix issue where linters collide. Update ignore file.

- Remove unused sort override for polyfills.

* core: Prepare repo for NPM workspaces.

web/packages/monorepo/paths.js

@@ -0,0 +1,45 @@
+import { createRequire } from "node:module";
+import { dirname, join, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const relativeDirname = dirname(fileURLToPath(import.meta.url));
+
+/**
+ * @typedef {'~authentik'} MonoRepoRoot
+ */
+
+/**
+ * The root of the authentik monorepo.
+ */
+// TODO: Revise when this package is moved to the monorepo's `packages/monorepo` directory.
+export const MonoRepoRoot = /** @type {MonoRepoRoot} */ (
+    resolve(relativeDirname, "..", "..", "..")
+);
+
+const require = createRequire(import.meta.url);
+
+/**
+ * Resolve a package name to its location in the monorepo to the single node_modules directory.
+ * @param {string} packageName
+ *
+ * @returns {string} The resolved path to the package.
+ * @throws {Error} If the package cannot be resolved.
+ */
+export function resolvePackage(packageName) {
+    const relativePackageJSONPath = join(packageName, "package.json");
+
+    /** @type {string} */
+    let absolutePackageJSONPath;
+
+    try {
+        absolutePackageJSONPath = require.resolve(relativePackageJSONPath);
+    } catch (cause) {
+        const error = new Error(`Failed to resolve package "${packageName}"`);
+
+        error.cause = cause;
+
+        throw error;
+    }
+
+    return dirname(absolutePackageJSONPath);
+}