Improve deprecated-forms-set and add a new deprecated-forms-get rule

[krekas]

• Add deprecated-forms-get rule to detect use Filament\Forms\Get and callable $get patterns
• Enhance deprecated-forms-set rule to also detect callable $set in closures
• Make AddsImport trait violations silent so import-related fixes no longer clutter the output

Before / After

Running filacheck on this code:

<?php

use Filament\Schemas\Components\TextInput;

class TestResource
{
    public function form(): array
    {
        return [
            TextInput::make('name')
                ->afterStateUpdated(function (callable $set, callable $get) {
                    $set('slug', Str::slug($get('name')));
                }),
        ];
    }
}

Before (noisy output with import warnings):

✗ deprecated-forms-set
    Line 11: Parameter `$set` should be typed as `Set` instead of `callable`.
    Line 1:  Missing import: use Filament\Schemas\Components\Utilities\Set;

✗ deprecated-forms-get
    Line 11: Parameter `$get` should be typed as `Get` instead of `callable`.
    Line 1:  Missing import: use Filament\Schemas\Components\Utilities\Get;

Issues: 4 warning(s)

After (clean output, import warnings are silent):

✗ deprecated-forms-set
    Line 11: Parameter `$set` should be typed as `Set` instead of `callable`.

✗ deprecated-forms-get
    Line 11: Parameter `$get` should be typed as `Get` instead of `callable`.

Issues: 2 warning(s)

Running filacheck --fix still silently adds the imports and produces:

<?php

use Filament\Schemas\Components\TextInput;
use Filament\Schemas\Components\Utilities\Get;
use Filament\Schemas\Components\Utilities\Set;

class TestResource
{
    public function form(): array
    {
        return [
            TextInput::make('name')
                ->afterStateUpdated(function (Set $set, Get $get) {
                    $set('slug', Str::slug($get('name')));
                }),
        ];
    }
}

Resolves #17