Improve StartComputeInstanceOnlyAllowedInStoppedState error

[sevillal]

When a compute instance is not running we are showing a promp with a button for the user to start the compute instance.

The StartComputeInstanceOnlyAllowedInStoppedState error could happen in the following scenario:

1. Compute instance is stopped
2. Prompt with button to start the CI is displayed
3. Customer leaves the VS Code window and starts the compute instance from the Studio
4. Customer goes back to the VS Code window and click the "Start CI" button

Proposal:
We could check the status of the CI right after the click and do the appropiate:

• If in stopped state then start the CI
• If in a transition to running state then wait for it to be running
• If in a failed stated then show an error
• If in a transition to stopped state: need PM input