Add queries for top-level and instance variables in outline panel

[Blimster]

Closes #12

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[Blimster]

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[Copilot]

Pull request overview

This PR adds tree-sitter queries to include top-level and instance variables in Zed's outline panel for Dart files. The changes aim to make more Dart code structures visible in the outline, improving navigation and code organization visibility.

• Adds static_final_declaration query to capture static final variable declarations
• Adds initialized_identifier query to capture initialized variables

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[MrSubidubi]

Thanks for this! Could you please share a quick example/screenshot of what this adds to the outline panel? Thanks!

[Blimster]

Hi @MrSubidubi,

Example:

final foo = 'bar';

class Foo {
  final String bar;

  Foo(this.bar);

  String getBar() => bar;
}

extension FooExtension on Foo {
  String getBar() => bar;
}

Outline panel before:

Outline panel after:

[MrSubidubi]

Nice, looks good! Thank you!