ylproj/jupyterlab @ c8d68f2ca3e3a3093ceefad2b0b40f4c89951396

Frédéric Collonval 0d166ef26b Backport PR #12028 on branch 3.4.x (Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar) (#12445)		%!s(int64=2) %!d(string=hai) anos
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notebook.spec.ts-snapshots	0d166ef26b Backport PR #12028 on branch 3.4.x (Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar) (#12445)	%!s(int64=2) %!d(string=hai) anos
notebook.spec.ts	ca9c16971a Backport PR jupyterlab#11575: Fix markdown benchmark snapshot (#11577)	%!s(int64=3) %!d(string=hai) anos