seo: cleanup and optimize roadmap(s) metadata (#8828)

* audit first 11 roadmaps

* audit next 10 roadmaps

* audit next 15 roadmaps

* audit last 22 roadmaps

* Update src/data/roadmaps/ai-data-scientist/ai-data-scientist.md

* Update src/data/roadmaps/aspnet-core/aspnet-core.md

* apply suggestions from code review

* fix seo title

* Update src/data/roadmaps/frontend/frontend.md

* Update src/data/roadmaps/backend/backend.md

---------

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/cpp/cpp.md

@@ -23,30 +23,35 @@ seo:
   description: 'Community driven, articles, resources, guides, interview questions, quizzes for C++ development. Learn to become a modern C++ developer by following the steps, skills, resources and guides listed in this roadmap.'
   keywords:
     - 'guide to becoming a c++ developer'
-    - 'c++ developer'
+    - 'c++ developer 2025'
     - 'c++ engineer'
     - 'c++ skills'
+    - 'cpp roadmap 2025' 
     - 'guide to c++'
     - 'c++ roadmap'
+    - 'c++ roadmap 2025'
     - 'c++ skills'
     - 'c++ skills test'
     - 'skills for c++'
     - 'what is c++'
+    - 'c plus plus roadmap'
+    - 'c plus plus developer'
     - 'c++ quiz'
     - 'c++ interview questions'
     - 'c++ engineer roadmap'
     - 'c++ developer roadmap'
+    - 'c++ developer roadmap 2025'
     - 'become a c++ developer'
     - 'c++ developer career path'
     - 'c++ developer'
     - 'modern c++ developer'
 relatedRoadmaps:
-  - 'backend'
-  - 'devops'
+  - 'rust'
+  - 'linux'
   - 'python'
-  - 'golang'
+  - 'computer-science'
   - 'java'
-  - 'nodejs'
+  - 'datastructures-and-algorithms'
 sitemap:
   priority: 1
   changefreq: 'monthly'