Add pin rows to Profile Memory table (#9832)
* Add pin rows to Profile Memory table
* Update packages/devtools_app/lib/src/screens/memory/panes/profile/profile_pane_controller.dart
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
* Update packages/devtools_app/lib/src/screens/memory/panes/profile/profile_view.dart
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
* fix issues
* Tighten pin column and show icon on hover
* 32->10
* fix pin hover test
* update img
* Remove unused pin helpers.
* Update profile tab golden.
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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
