Bug: 2020622 Updated column title from Total Runs to Total Trials

[kala-moz]

This PR changes the column title from Total Runs to Total Trials to clarify any confusion regarding replicates enabled for MWU vs disabled for Student-T. Fix for Bug 2020622

[netlify]

✅ Deploy Preview for mozilla-perfcompare ready!

Name	Link
🔨 Latest commit	952f55d
🔍 Latest deploy log	https://app.netlify.com/projects/mozilla-perfcompare/deploys/69b44901e4efa00008d803b2
😎 Deploy Preview	https://deploy-preview-1012--mozilla-perfcompare.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.46%. Comparing base (8d9285e) to head (952f55d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1012   +/-   ##
=======================================
  Coverage   96.46%   96.46%           
=======================================
  Files         109      109           
  Lines        3051     3051           
  Branches      691      691           
=======================================
  Hits         2943     2943           
  Misses        107      107           
  Partials        1        1           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.