Add support for Filament classes

[azzazkhan]

I'm trying to set custom column span for specific widgets but it's not changing the column span. After digging up a bit I found that Filament adds --col-span-default CSS variable in style attribute of the wrapper element and then adds `` class on the wrapper element to make it span specified columns. Currently the element and classes are hard coded in filament-google-analytics::widgets.* views so specifying custom column span is not possible.

[azzazkhan]

Just replace the wrapper div element with x-filament-widgets::widget component in blade views.