fix: Resolve TypeScript errors

Signed-off-by: Hermes Agent <hermes@nosuchhost>

client/node_modules/eslint/lib/linter/index.js

@@ -0,0 +1,11 @@
+"use strict";
+
+const { Linter } = require("./linter");
+const SourceCodeFixer = require("./source-code-fixer");
+
+module.exports = {
+	Linter,
+
+	// For testers.
+	SourceCodeFixer,
+};