feat(tanstack-start): Path based routing and Router support (clerk#3932)

Co-authored-by: Joe Bell <7349341+joe-bell@users.noreply.github.com>
Co-authored-by: Stefanos Anagnostou <anagstef@users.noreply.github.com>
Co-authored-by: Lennart <lekoarts@gmail.com>

Author: 4 people

.changeset/hip-spiders-behave.md

@@ -0,0 +1,5 @@
+---
+"@clerk/tanstack-start": minor
+---
+
+Add support for path based routing and TanStack Router only apps

.github/labeler.yml

@@ -56,3 +56,6 @@ actions:
 
 integration:
   - integration/**
+
+tanstack:
+  - packages/tanstack-start/**