add applyDefaultSortingToTableQuery method to custom default sort behavior

[debuqer]

This feature allows developers to custom "default sort" behavior in Table builder

Usage:

1. When you need a set of columns to be sorted by default
2. When you need a calculated column to be sorted by default
3. When you need a json object attribute to be sorted by default

Since all the logic just moved to a new method; it's not breaking any thing

Tested scenarios:

1. Not given defaultSort, Not overrided applyDefaultSortingToTableQuery: Nothing have broken, no sort applied
2. Given defaultSort, Not overrided applyDefaultSortingToTableQuery: sorted by price order by id

        return $table
            ->columns([
                Tables\Columns\TextColumn::make('price'),
                Tables\Columns\TextColumn::make('count'),
                Tables\Columns\TextColumn::make('discount'),
            ])
            ->filters([
                //
            ])
            ->actions([
                Tables\Actions\EditAction::make(),
            ])
            ->bulkActions([
                Tables\Actions\DeleteBulkAction::make(),
            ])->defaultSort('price', 'desc');

4. Given defaultSort, Overrided applyDefaultSortingToTableQuery:

    protected function applyDefaultSortingToTableQuery(Builder $query, string $sortColumn, string $sortDirection): Builder
    {
        return $query->orderByRaw("$sortColumn * ( 100 - discount ) / 100 $sortDirection"); 
    }

sorted by the given formula

5. Multiple sort columns

    protected function applyDefaultSortingToTableQuery(Builder $query, string $sortColumn, string $sortDirection): Builder
    {
        return $query->orderByRaw("price desc, discount asc");
    }

5. Json sort

         ...
            ])->defaultSort("prices->'$.tax'", 'desc'); // not working when applyDefaultSortingToTableQuery is not overrided
    . . .
    protected function applyDefaultSortingToTableQuery(Builder $query, string $sortColumn, string $sortDirection): Builder
    {
         return $query->orderByRaw("$sortColumn $sortDirection");
    }

[danharrin]

Thanks