Rename display_name to message for Rule

[terror]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.47059% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.26%. Comparing base (fa9ba88) to head (c55257b).

Files with missing lines	Patch %	Lines
src/rule/attribute_invalid_target.rs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #178   +/-   ##
=======================================
  Coverage   90.26%   90.26%           
=======================================
  Files          54       54           
  Lines        8658     8658           
=======================================
  Hits         7815     7815           
  Misses        843      843           

Flag	Coverage Δ
unit	90.26% <96.47%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ 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.