Reorgranised blade view files to form a convention

- Primarily moved and re-organised view files.
- Included readme within views to document the convention.
- Fixed some issues with page field select list in previous commit.
- Tweaked some route names while going through.
- Split some views out further.

Closes #2805

resources/views/form/checkbox.blade.php

@@ -4,7 +4,7 @@ $label
 $errors?
 $model?
 --}}
-@include('components.custom-checkbox', [
+@include('form.custom-checkbox', [
     'name' => $name,
     'label' => $label,
     'value' => 'true',