fix(typedoc): warning when not using the 'exclude' option (#318)

fix-warning

Author: lachlancollins

.changeset/rare-dots-draw.md

@@ -0,0 +1,5 @@
+---
+'@tanstack/typedoc-config': patch
+---
+
+fix: warning when not using the 'exclude' option

packages/typedoc-config/src/index.js

@@ -45,7 +45,7 @@ export const generateReferenceDocs = async (options) => {
       gitRevision: options.gitBranch ?? 'main',
       entryPoints: pkg.entryPoints,
       tsconfig: pkg.tsconfig,
-      exclude: pkg.exclude,
+      exclude: pkg.exclude ?? [],
       out: pkg.outputDir,
     })