fix cleanFilter() bug and auto-initialize filters parameter

[bdelamatre]

• commented out $this->cleanFilters() on getRowsQueryProperty(). Filtering was broken in my environment and this was the cause. I couldn't figure out why this would be here so I commented it out.
• added mountWithFilters which will auto-initialize $filters from filters(). This removes the requirement to define $filters and filters().

[rappasoft]

https://github.com/rappasoft/laravel-livewire-tables/blob/master/src/Traits/WithFilters.php#L40 cleanFilters makes sure the option being selected exists in the list of options you allow, to prevent any SQL security issues.

Also if you don't define $filters, how can you set defaults?

[bdelamatre]

Ahh, that gives me more to go off, thanks. I bet there is something like a typecasting mismatch. I will dig further.

You can still define $filters if you have defaults, it only defines them on mount if they are missing. I suppose we could add a default field to the fields() definition. It's not necessary, but that would keep the entire filters definition in one place.

[bdelamatre]

Replaced with #213