update graph widget url (#123)

# Motivation
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# Content
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# Testing
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# Please check the following before marking your PR as ready for review

- [ ] I have added tests for my changes
- [ ] I have updated the documentation or added new documentation as
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---------

Co-authored-by: Codegen Team (Internal) <[email protected]>

Author: 2 people

docs/building-with-codegen/codebase-visualization.mdx

@@ -20,7 +20,7 @@ This guide provides a basic overview of graph creation and customization. Like t
   width="100%"
   height="600px"
   scrolling="no"
-  src={`https://chadcode.sh/embedded/graph?id=ef312926-286d-4c13-8e09-38e1a47882f1&zoom=0.5`}
+  src={`https://codegen.sh/embedded/graph?id=ef312926-286d-4c13-8e09-38e1a47882f1&zoom=0.5`}
   className="rounded-xl "
   style={{
     backgroundColor: "#15141b",

docs/introduction/overview.mdx

@@ -25,7 +25,7 @@ for function in codebase.functions:
   width="100%"
   height="300px"
   scrolling="no"
-  src={`https://chadcode.sh/embedded/codemod/?code=${encodeURIComponent(
+  src={`https://codegeh.sh/embedded/codemod/?code=${encodeURIComponent(
     intoSnippet
   )}`}
   style={{