Fixed roque @parent tags showing in first section

If a partial has a @parent tag in it it works perfectly as designed unless it is the first component of that type called. In my case:

Main Section
```php
    @extends('layouts.main')
    
    @section('main')
    
      @include('layouts.partials.component1')
      @include('layouts.partials.component2')
    
    @stop
```

component1
```php
    text text text
    @section('scripts')
        @parent
        <script type="text/javascript"></script>
    @stop
```

component2
```php
    text text text
    @section('scripts')
        <script type="text/javascript></script>
    @stop
```

In the case of the main section, component1 would have its @parent tag rendered due to there being no parent.

so by adding 

```php
$content = str_replace('@parent', '', $content);
```
in the case of it being the first section of that type it will just remove hte @parent since there is not a parent.