Wrap handbook parts with Liquid raw tags

Remove the YAML frontmatter flag `render_with_liquid: false` and wrap each handbook file with Liquid raw blocks. For react-handbook-part1..4.md the document body is now enclosed with `{% raw %}` at the top and `{% endraw %}` at the bottom to prevent Liquid/Jekyll from processing template syntax during site build.

Author: adityaSrivastava29

React Interview/react-handbook-part1.md

@@ -1,6 +1,6 @@
 ---
-render_with_liquid: false
 ---
+{% raw %}
 
 # 🚀 Senior Frontend Engineer / React Developer Interview Handbook
 
@@ -1852,3 +1852,5 @@ Key metrics to watch:
 ---
 
 _End of Part 1 — Sections 1–5_
+
+{% endraw %}

React Interview/react-handbook-part2.md

@@ -1,6 +1,6 @@
 ---
-render_with_liquid: false
 ---
+{% raw %}
 
 # 🚀 Senior Frontend Engineer / React Developer Interview Handbook
 
@@ -1313,3 +1313,5 @@ const { data } = useQuery({
 ---
 
 _End of Part 2 — Sections 6–10_
+
+{% endraw %}

React Interview/react-handbook-part3.md

@@ -1,6 +1,6 @@
 ---
-render_with_liquid: false
 ---
+{% raw %}
 
 # 🚀 Senior Frontend Engineer / React Developer Interview Handbook
 
@@ -1462,3 +1462,5 @@ All MFEs share the same design system version. Upgrade in one place.
 ---
 
 _End of Part 3 — Sections 11–15_
+
+{% endraw %}

React Interview/react-handbook-part4.md

@@ -1,6 +1,6 @@
 ---
-render_with_liquid: false
 ---
+{% raw %}
 
 # 🚀 Senior Frontend Engineer / React Developer Interview Handbook
 
@@ -1385,3 +1385,5 @@ _End of Part 4 — Sections 16–20_
 | [react-handbook-part2.md](react-handbook-part2.md) | 6–10     | State Mgmt, Router, API, Patterns, System Design    |
 | [react-handbook-part3.md](react-handbook-part3.md) | 11–15    | Machine Coding, Testing, Security, Build, Micro FE  |
 | [react-handbook-part4.md](react-handbook-part4.md) | 16–20    | NPM, Q&A, Mental Models, Checklist, FAANG Internals |
+
+{% endraw %}