Linter: Implement actionview-strict-locals-first-line rule

[marcoroth]

This pull request implements a new actionview-strict-locals-first-line linter rule that ensures that the Rails strict locals are defined on the first line of the partial. Rails allows you to put the definition anywhere in the file, but its confusing if it's not on the first line:

<%# locals: (user:) %>

<p>Hello <%= user.name %></p>

vs. something like:

<p>Hello <%= user.name %></p>

<%# locals: (user:) %>

[pkg-pr-new]

npx https://pkg.pr.new/@herb-tools/formatter@1440

npx https://pkg.pr.new/@herb-tools/language-server@1440

npx https://pkg.pr.new/@herb-tools/linter@1440

commit: fbe24be

[github-actions]

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