Cherry pick change for icon overflow (#4753)

* Change number of icons in notebook toolbar (#4747)

* Fix icons

* Have trust command show up and nothing else if untrusted

* Add trust check to all commands

* Update based on discussion

* Update change log

CHANGELOG.md

@@ -27,6 +27,8 @@
    ([#302](https://github.com/Microsoft/vscode-jupyter/issues/302))
 1. Add do not show again option to the native notebook insiders survey banner.
    ([#4658](https://github.com/microsoft/vscode-jupyter/issues/4658))
+1. Minimize number of icons on the notebook toolbar (put the rest in overflow).
+   ([#4730](https://github.com/Microsoft/vscode-jupyter/issues/4730))
 
 ### Fixes