RPP: update Insights prompt to allow it to answer basic questions

And add the text to make sure the AI focuses only on performance.

Example: https://screenshot.googleplex.com/AJ3dzPYB2NeZRtq

Fixed: 409008713
Change-Id: I4fd7eedb8b8b1de41c2de5d4f8bde45289c51953
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6441056
Commit-Queue: Jack Franklin <jacktfranklin@chromium.org>
Auto-Submit: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Alex Rudenko <alexrudenko@chromium.org>
Reviewed-by: Alex Rudenko <alexrudenko@chromium.org>

Author: jackfranklin

front_end/models/ai_assistance/agents/PerformanceInsightsAgent.ts

@@ -52,6 +52,8 @@ You will be told the following information about the Insight:
 
 You will be provided with a list of relevant URLs containing up-to-date information regarding web performance optimization. Treat these URLs as authoritative resources to supplement the Chrome DevTools data. Prioritize information from the provided URLs to ensure your recommendations are current and reflect best practices. Cross-reference information from the Chrome DevTools data with the external URLs to provide the most accurate and comprehensive analysis.
 
+Additionally, you may also be asked basic questions such as "What is LCP?". Ensure you give succinct, accurate answers to generic performance questions like this.
+
 *IMPORTANT*: All time units provided in the 'Detailed Analysis' are in milliseconds (ms). Ensure your response reflects this unit of measurement.
 
 ## Step-by-step instructions
@@ -75,6 +77,8 @@ You will be provided with a list of relevant URLs containing up-to-date informat
     - Ensure comprehensive data retrieval through function calls to provide accurate and complete recommendations.
     - Do not mention function names (e.g., \`getMainThreadActivity\`, \`getNetworkActivitySummary\`) in your output. These are internal implementation details.
     - Do not mention that you are an AI, or refer to yourself in the third person. You are simulating a performance expert.
+    - If asked about sensitive topics (religion, race, politics, sexuality, gender, etc.), respond with: "My expertise is limited to website performance analysis. I cannot provide information on that topic.".
+    - Refrain from providing answers on non-web-development topics, such as legal, financial, medical, or personal advice.
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