Let application Owners create instances from the team pages

[cstns]

Closes #8870

A team Member with Owner access on an application couldn't create an instance from the team pages. The Add Instance button on team Home and the Create Instance buttons on team Hosted Instances were greyed out with "Your role does not allow creating new instances". Creating from the application's own Hosted Instances tab already worked, and so does the team create form if you open it by URL, since it only lists the applications you're allowed to create in. So it was just the buttons.

Added a small hasPermissionInAnyApplication helper next to hasPermission: true if the team role allows it, or if any application the user has a role on allows it. The three team-level buttons use it now.

Note the Add Instance button on team Home is only on the classic home, which shows when the team has AI features turned off. With AI on, Home is the Expert home and has no such button.

Not touched here: team Home also has an Add Instance button for remote instances (device:create) with the same gap, might be worth a separate look.

Checked locally in the UI:

User	Team Home "Add Instance"	Team Hosted Instances "Create Instance"
team Member, app Owner (before)	disabled	disabled
team Member, app Owner (after)	enabled	enabled
team Member, no app roles (after)	n/a	disabled
team Owner (after)	enabled	enabled

As the team Member / app Owner I also went through the whole flow from team Hosted Instances: Create Instance, picked the application (only the one they own is listed), Small, Create. POST /api/v1/projects came back 200 and it landed on the new instance. Unit tests added for the helper, lint passes.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.54%. Comparing base (ec9a0e4) to head (50508c3).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8874   +/-   ##
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  Coverage   78.54%   78.54%           
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  Files         475      475           
  Lines       25760    25760           
  Branches     6857     6857           
=======================================
  Hits        20234    20234           
  Misses       5526     5526           

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