Replace performance comparison link with an image in release notes for version 15.0.0

Author: AbanoubGhadban

docs/release-notes/15.0.0.md

@@ -32,7 +32,7 @@ This optimization is particularly impactful for:
 
 _Performance improvement visualization:_
 
-[Performance comparison showing early hydration improvement](https://drive.google.com/file/d/1rArLh8EX1dKBWksZ1Ypbj4_K1B5Fn7dq/view)
+![Performance comparison showing early hydration improvement](../assets/early-hydration-performance-comparison.jpg)
 
 _The image above demonstrates the dramatic performance improvement:_