VS Code: remove matter of taste tabs customization

[MaEtUgR]

Describe problem solved by the proposed pull request
There is a lot of very useful project specific configuration contributed by @dagar in the .vscode folder for the PX4 repo. But this setting is a matter of taste changing the UI behavior for the editor and not project specific. It determines if new code tabs are kept open when you just take a quick glance without changing anything. Since this feature is default and I like it a lot I would prefer to not have it disabled for PX4 by workspace settings.

Note: When you want to keep a tab that is in preview mode open you can double click to open it, double click on the tab name or press Ctrl+K followed by Enter.

Test data / coverage
Without these lines it runs again like expected.

Describe your preferred solution
Can we have matter of taste settings kept in our local user configuration?

[dagar]

This is good, it means it's actually being used.

I think the rule here can be simple. If there's a difference in personal preference like this on settings that don't impact PX4 specifically we leave it as default. VSCode already has mechanisms to override these settings per user, per folder, per project.

Thanks @MaEtUgR