[FIX] fix duplicate GitHub Actions sidebar entry and article naming

- Rename _meta key from "start-githubactions" to "github-actions-ci-cd" to match actual filename, fixing duplicate sidebar entry
- Add proper "Maqolalar" title for article folder in tutorials, hiding raw "article" label

Author: ismoilovdevml

pages/guides/ci-cd/_meta.en-UZ.json

@@ -17,7 +17,7 @@
     "description": "Github Actions + Argo CD",
     "href": "/guides/ci-cd/github-actions-argocd-cicd"
   },
-  "start-githubactions": {
+  "github-actions-ci-cd": {
     "title": "Github Actions CI/CD",
     "icon": "▶️",
     "description": "Github Actions bilan CI/CD yozamiz",

pages/tutorials/_meta.en-UZ.json

@@ -1,4 +1,8 @@
 {
   "all": "Hammasi",
+  "article": {
+    "title": "Maqolalar",
+    "display": "hidden"
+  },
   "developing": "DevOps"
 }