[EDI - Builders] Update shortTitles for Get started category (#56806)

Author: saritai

content/copilot/get-started/github-copilot-features.md

@@ -5,7 +5,7 @@ versions:
   feature: copilot
 topics:
   - Copilot
-shortTitle: Copilot features
+shortTitle: Features
 redirect_from:
   - /copilot/copilot-business/github-copilot-business-feature-set
   - /copilot/copilot-individual/github-copilot-individual-feature-set

content/copilot/get-started/plans-for-github-copilot.md

@@ -5,7 +5,7 @@ versions:
   feature: copilot
 topics:
   - Copilot
-shortTitle: Plans for Copilot
+shortTitle: Plans
 redirect_from:
   - /copilot/about-github-copilot/subscription-plans-for-github-copilot
   - /copilot/about-github-copilot/plans-for-github-copilot