FIX-2361 Support multiple windows in desktop app

[eliasbruvik]

Fixes

This pull request fixes #2361

Description

• Added support for multiple windows.
• Works with "show on server".
• Only keeps one "main" instance and one "api" instance.
• Added ability to get the full jobs list in desktop mode.

Type of change

• Bugfix
• New feature (non-breaking change which adds functionality)
• Enhancement of existing functionality
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Impacted Areas in Application

• Frontend
• API
• WITSML
• Desktop
• Other (please describe)

Checklist:

Communication

• I have made corresponding changes to the documentation
• PR affects application security

Code quality

• I have self-reviewed my code
• No new warnings are generated

Test coverage

• New code is covered by passing tests

Further comments

[janmarius]

LGTM, good job!
Reviewer checklist

• Read issue and PR
• Pulled branch and manually tested
• Verify that PR resolves issue
• Reviewed the code