Refactor cleanFilter() and auto-initialize filters parameter

[bdelamatre]

• Refactored cleanFilter() to filter out all keys that don't have a filters() definition
• When cleaning filters, force typecasting on integer values
• added mountWithFilters which will auto-initialize $filters from filters(). This removes the requirement to define $filters and filters().

I wasn't able to find a proper way in livewire to typecast these values, hence the typecasting when a specific type is checked. I am sure there is a better way to handle this, but this works.

[rappasoft]

Made some slight tweaks to cleanFilters but I don't think I changed any of what you were after.

[rappasoft]

Screen.Recording.2021-04-18.at.22.27.05.mov

Also currently have an issue with multiple filters and removing the pills. Seems to be a conflict with the wire:key's. I renamed them all to be unique but I'm still having issues.

[rappasoft]

Think I fixed it with this commit: 392e7d5

[rappasoft]

I don't know why this didn't get merged with the last dev->master but the code is in there.