Enhance modal input component and storage forms

- Added 'minWidth' attribute to modal input component for better responsiveness.
- Updated modal input instantiation in storage view to set a minimum width of 64rem.
- Improved layout and user guidance in the storage add forms by adding descriptive text for volume, file, and directory mounts.
- Changed button labels from 'Save' to 'Add' for clarity in storage forms.

resources/views/livewire/project/service/storage.blade.php

@@ -15,7 +15,7 @@
                     volume
                     name, example: <span class='text-helper'>-pr-1</span>" />
             @if ($resource?->build_pack !== 'dockercompose')
-                <x-modal-input :closeOutside="false" buttonTitle="+ Add" title="New Persistent Storage">
+                <x-modal-input :closeOutside="false" buttonTitle="+ Add" title="New Persistent Storage" minWidth="64rem">
                     <livewire:project.shared.storages.add :resource="$resource" />
                 </x-modal-input>
             @endif