WD-7282 - fix: Display dashboard with 0 controllers

[vladimir-cucu]

Done

• Display dashboard as usual instead of error message when there are 0 controllers.

QA

• Login with a user that has 0 controllers.
• Check that the dashboard loads as usual instead of a Notification component with an error message being displayed on the whole page.

Details

• https://warthogs.atlassian.net/browse/WD-7282
• Fixes: https://github.com/canonical/juju-dashboard/issues/1652

[webteam-app]

Demo starting at https://juju-dashboard-1653.demos.haus

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (2622e20) 95.01% compared to head (d8031b3) 95.02%. Report is 4 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1653 +/- ## ======================================= Coverage 95.01% 95.02% ======================================= Files 170 170 Lines 5120 5124 +4 Branches 1449 1454 +5 ======================================= + Hits 4865 4869 +4 Misses 233 233 Partials 22 22 ```

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[huwshimi]

I was able to reproduce this and your fix works!

One thing I spotted was that the controllers page still lists "1 controller" even though there are none in the table.

[vladimir-cucu]

I was able to reproduce this and your fix works!

One thing I spotted was that the controllers page still lists "1 controller" even though there are none in the table.

Didn't spot this issue. I'll look into it. Thanks for the review!