Add an Edit Container Image... command

[MicroFish91]

Basically the same as the Update Container... command, but skips the prompt to update environment variables.

This is a more specific command to only update the image child only.

Update: Changed to Edit Container Image...

[nturinski]

Similar to Alex's comment in your Update Container... PR, I think that this could benefit from some verbiage changes.

Specifically, I feel like Update Container Image... could be more easily conflated with actually updating the container app or people may think that they can only make minor edits to an existing image.

Deploy Container Image... or Deploy new Container Image... gives me the impression that I am overwriting whatever the current image is.

Not blocking for this, just noting that we should have a conversation about it.

[MicroFish91]

Similar to Alex's comment in your Update Container... PR, I think that this could benefit from some verbiage changes.

Specifically, I feel like Update Container Image... could be more easily conflated with actually updating the container app or people may think that they can only make minor edits to an existing image.

Changed to Edit Container Image... based on recent discussions