Update getting-started.mdx

[msoyka]

Modified action_id to be button_click

Summary

Describe the goal of this PR. Mention any related Issue numbers.

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[salesforce-cla]

Thanks for the contribution! Before we can merge this, we need @msoyka to sign the Salesforce Inc. Contributor License Agreement.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.59%. Comparing base (80032af) to head (6db43a6).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2402   +/-   ##
=======================================
  Coverage   92.59%   92.59%           
=======================================
  Files          36       36           
  Lines        7472     7472           
  Branches      653      653           
=======================================
  Hits         6919     6919           
  Misses        545      545           
  Partials        8        8           

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

[seratch]

Hi @msoyka, thank you so much for sending this PR! The changes look good to me, but could you please consider signing our CLA? Without having it, we're unable to merge any external contributions. Sorry for the extra effort! but it'd be appericiated if you could understand this.