fix: Incorrect JoystickComponent position in landscape mode #2387

[cigjonser]

Description

When in landscape mode, a Component will need to be repositioned based on the new canvas
dimensions. If a Component has not reached the mounted state when
HudMarginComponent.onGameResize is called, then _updateMargins will not be called, and
the position will not be updated.
This PR removes the check that the Component has reached the mounted state in
HudMarginComponent.onGameResize so that _updateMargins will always be called.

Checklist

• I have followed the Contributor Guide when preparing my PR.
• [-] I have updated/added tests for ALL new/updated/fixed functionality.
• [-] I have updated/added relevant documentation in docs and added dartdoc comments with ///.
• [-] I have updated/added relevant examples in examples or docs.

Breaking Change?

• Yes, this PR is a breaking change.
• No, this PR is not a breaking change.

Related Issues

[luanpotter]

LGTM

[erickzanardo]

Would be nice to have a test for this bug. So it doesn't happen again

[spydon]

Thanks for your contribution @cigjonser! :)

[luanpotter]

LGTM