rename book_en to chapters

Author: RealRichi3

_quarto.yml

@@ -12,30 +12,30 @@ book:
   chapters:
     - index.qmd
     - intro.qmd
-    - book_en/changelog.qmd
-    - part: book_en/contributing/index.qmd
+    - chapters/changelog.qmd
+    - part: chapters/contributing/index.qmd
       chapters:
-        - book_en/contributing/project_structure.qmd
-        - book_en/contributing/raising_issues.qmd
-        - book_en/contributing/raising_pr.qmd
-        - book_en/contributing/adding_a_course.qmd
-        - book_en/contributing/api_project_structure.qmd
-        - book_en/contributing/improving_documentation.qmd
-    - book_en/environment_setup.qmd
-    - part: book_en/localization/index.qmd
+        - chapters/contributing/project_structure.qmd
+        - chapters/contributing/raising_issues.qmd
+        - chapters/contributing/raising_pr.qmd
+        - chapters/contributing/adding_a_course.qmd
+        - chapters/contributing/api_project_structure.qmd
+        - chapters/contributing/improving_documentation.qmd
+    - chapters/environment_setup.qmd
+    - part: chapters/localization/index.qmd
       chapters:
-        - book_en/localization/client.qmd
-        - book_en/localization/backend.qmd
-    - part: book_en/technical_guide/index.qmd
+        - chapters/localization/client.qmd
+        - chapters/localization/backend.qmd
+    - part: chapters/technical_guide/index.qmd
       chapters:
-        - book_en/technical_guide/api_guide/api_structure.qmd
-        - book_en/technical_guide/api_guide/api_authentication_flow.qmd
-        - book_en/technical_guide/api_guide/jwt_token_management.qmd
-        - book_en/technical_guide/api_guide/rbac_handler_flow.qmd
-        - book_en/technical_guide/ci_workflow.qmd
-        - book_en/technical_guide/deployment_guide.qmd
-        - book_en/technical_guide/reviewing_pr.qmd
-        - book_en/technical_guide/secrets_and_security.qmd
+        - chapters/technical_guide/api_guide/api_structure.qmd
+        - chapters/technical_guide/api_guide/api_authentication_flow.qmd
+        - chapters/technical_guide/api_guide/jwt_token_management.qmd
+        - chapters/technical_guide/api_guide/rbac_handler_flow.qmd
+        - chapters/technical_guide/ci_workflow.qmd
+        - chapters/technical_guide/deployment_guide.qmd
+        - chapters/technical_guide/reviewing_pr.qmd
+        - chapters/technical_guide/secrets_and_security.qmd
 
     - references.qmd
 
@@ -48,16 +48,17 @@ format:
 
 babelquarto:
   languagecodes:
-    - name: en
-      text: "Version in en"
-    - name: ar
-      text: "Version in ar"
-  mainlanguage: "en"
-  languages: ["ar"]
+  - name: en
+    text: "Version in en"
+  - name: ar
+    text: "Version in ar"
+  mainlanguage: 'en'
+  languages: ['ar']
 title-en: title in en
 title-ar: title in ar
 description-en: description in en
 description-ar: description in ar
 author-en: author in en
 author-ar: author in ar
 lang: en
+