Instance display name and root color highlighting

[Hobbes4Pres]

Updated to support the configuration file display name for each instance using an additional column. Added a color indicator when the status of Root is turned on within an instance.

I have well over 20 instances in Bluestacks so instance numbers are hard themselves to identify which instance is being adjusted.

[gemini-code-assist]

Code Review

This pull request introduces support for parsing and displaying instance display names in the UI, alongside visual improvements such as highlighting active root statuses in green. The feedback suggests returning the new display_names key in the exception handler of get_complete_root_statuses to ensure API consistency, and renaming a variable in main.py to adhere to PEP 8 style guidelines while simplifying its stylesheet.

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[RobThePCGuy]

Thanks for this, the display-name column and root-color highlighting are genuinely useful (tested both locally with synthetic instance data and they work correctly, including on refresh).

I just merged #45, which replaces the old single-file main.py with a nav-rail layout (views/dashboard_page.py, views/instances_page.py, views/main_window.py, etc.). That rewrote the instance-list UI you were changing, so this PR now conflicts and can't merge as-is.

config_handler.py and constants.py are untouched by #45, so that half of your change is still good. The part that needs to move is the grid changes in main.py — that logic now lives in views/instances_page.py. Could you rebase onto current master and reapply the display-name column + root highlighting there? Happy to point you at the relevant spot in the new file if that's easier than digging through it.

[RobThePCGuy]

Update: rather than asking you to redo the rebase, I ported this onto the new views/ layout myself in #51 (your display-name parsing, the color highlighting, and the scroll area for large instance lists, all carried over and credited to you). Closing this in favor of #51 once that merges. Thanks for the contribution, this was a genuinely useful addition for anyone running a lot of instances.