Add toWebviewResource api proposal

For #76489

#76442

#76442

#76442

#76442

For #76442

* Make widgets take a code action set directly instead of a promise to one
* Trying to move ownership of the code actions into the CodeActionUi class

Fixes #76851

In the following case

1. Code action list is shown
1. We then update the code actions in the background (possibly because extensions took a little while to compute them)
1. The user accepts a code action

At step 2, we release the previous code action list which causes all of its actions to be gabage collected

**Fix**
Move lifecycle management of the code actions into the two consumers. Will look into make the code safer with a follow up fix

Part of #70978

Auto expand initial state of tree nodes is not yet implemented.
Part of #63566

Fixes #76774

Updates to the latest icon theme from seti-ui

* depend directly on vsda

* add vsda to remote

* remove vsda cleanup rules

* update distro

* upgrade vsda

* update distro

* update vsda

* remove vsda

* add vsda rules

* distro

* distro

 list: add getRole and isChecked to ariaProvider

Make vscode.env.shell stable API

There is a known bug for macros, but it is better to get the * fix and pick up the macro fix as soon as it is made.

They are not actually syntactically valid Python source.

Fixes #76624