Summary: Firebase adds Phone Number Verification news

Why It Matters: This shows Firebase is adding new tools for app developers.

What Changed:

• A "More" link was added near the top of the page.
• A "Sign in" link was changed to point to a different URL.
• A "Stay organized with collections" section was removed.
• A "Chat" button was added to the bottom of the page.
• Three new news articles were added under "News & events":
  • "Firebase Phone Number Verification developer preview"
  • "Dynamic Configuration in Java with Server-Side Firebase Remote Config"
  • "Gemini CLI - Agentic coding a Firebase App"
• The "Stack Overflow" link in the support section was updated.
• The "Slack community" link in the support section was removed.
• The "Google group" link in the support section was removed.
• The "Release notes" link in the support section was removed.
• The "Brand guidelines" link in the support section was removed.
• The "FAQs" link in the support section was removed.