Update ConfigurableAreasHelpers.php

[viliusvsx]

Hello, this commit fixes configurable areas for the toolbar view. Previous, if you set a configurable area as I write below, you get an error Undefined array key 0

public function configure(): void
    {
        $this->setConfigurableAreas([
            'toolbar-left-start' => [
                'path.to.view' => [
                    'param1' => $param1,
                    'param2' => $param2,
                ]
            ]
        ]);
    }

EDIT: Sorry, my bad. Closing PR

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[lrljoe]

Did you fix your issue? Or is there something that needs looking at?

[viliusvsx]

Yeah, I fixed it. The code works just fine, it's just my mistake, that I didn't read documentation carefully