Add missing 'stackName' param to return value

[ThalesC]

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Description

Maybe a mishap, but this was causing issues with opening the correct terminals for each container.

If containers from different stacks had the same service name (e.g. stack1-server and stack2-server), the frontend would bind a terminal based only on the service name and not open the correct one.

Steps to reproduce:

1. Deploy two or more stacks with the same service names, like:

stack1

version: "3.8"
services:
  server:
    image: ...
...

stack2

version: "3.8"
services:
  server:
    image: ...
...

2. Select one of the stacks (stack1)
3. Click to open the container's terminal from this stack (stack1-server)
4. Select the other stack (stack2)
5. Click to open the other terminal (should be stack2-server, but will be stack1-server)

Type of change

Please delete any options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist

• My code follows the style guidelines of this project
• I ran ESLint and other linters for modified files
• I have performed a self-review of my own code and tested it
• I have commented my code, particularly in hard-to-understand areas
  (including JSDoc for methods)
• My changes generate no new warnings
• My code needed automated testing. I have added them (this is optional task)

Screenshots (if any)

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[louislam]

Good catch!