Fix no facade aliased classes with macroable

[erikn69]

Summary

Aliases can be used with classes that are not Illuminate\Support\Facades\Facade and they can be Macroable.
This PR allows classes alias that do not extend Facade to be added to the list of macroables.

To explain myself better, an example:
'Arr' => \Illuminate\Support\Arr::class Facades/Facade.php#L276@defaultAliases()
Arr alias for \Illuminate\Support\Arr::class is not a Facade but uses Macroable: Illuminate/Collections/Arr.php#L16-L18

If you look at the code below, before adding the list of macroables it is filtered by Facade, which is why aliases like Arr would not work

laravel-ide-helper/src/Generator.php

Lines 269 to 273 in 0fa96e5

	$aliases = $this->getValidAliases()->filter(static function (Alias $alias) {
	return is_subclass_of($alias->getExtends(), Facade::class);
	});
	$this->addMacroableClasses($aliases);

• Are those aliases being removed for some reason?
• With this change and Revert #1629 - _Allow adding custom Macroable classes_ #1707, all my macros work correctly.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Misc. change (internal, infrastructure, maintenance, etc.)

Checklist

• Existing tests have been adapted and/or new tests have been added
• Update the README.md
• Code style has been fixed via composer fix-style