feat: use filament input wrapper for textareas, add alpha callout and preview image, remove redundant introduction page

docs/content/1.getting-started/1.introduction.md

@@ -1,52 +0,0 @@
----
-title: Introduction
-description: A full-featured commenting system for Filament panels.
-navigation:
-  icon: i-lucide-home
-seo:
-  title: Introduction
-  description: Learn about Comments - a full-featured commenting system for Filament panels with threaded replies, @mentions, emoji reactions, and real-time updates.
-  ogImage: /preview.png
----
-
-Welcome to **Comments**, a powerful Laravel package that adds a full-featured commenting system to any Filament panel.
-
-## What is Comments?
-
-Comments provides polymorphic commenting on any Eloquent model with deep Filament integration. Add threaded discussions, @mentions, emoji reactions, file attachments, and real-time notifications to your admin panel with minimal setup.
-
-## Why Choose Comments?
-
-::card-group
-  :::card
-  ---
-  icon: i-lucide-messages-square
-  title: Threaded Discussions
-  ---
-  Nested replies with configurable depth limits keep conversations organized and easy to follow.
-  :::
-
-  :::card
-  ---
-  icon: i-lucide-clock
-  title: Quick Setup
-  ---
-  Add traits to your models, register the plugin, and you have a working comment system in minutes.
-  :::
-
-  :::card
-  ---
-  icon: i-lucide-puzzle
-  title: 3 Integration Patterns
-  ---
-  Use as a slide-over action, table row action, or inline infolist entry - whatever fits your resource.
-  :::
-
-  :::card
-  ---
-  icon: i-lucide-bell
-  title: Built-in Notifications
-  ---
-  Database and mail notifications with subscription management and auto-subscribe for authors and mentioned users.
-  :::
-::