Add new documentation files for icons and UI components; restructure existing files

docs/icons/libraries/index.mdx

@@ -0,0 +1,3 @@
+---
+title: Libraries
+---

docs/icons/plugins/index.mdx

@@ -0,0 +1,3 @@
+---
+title: Plugins
+---

docs/icons/static-files/index.mdx

@@ -0,0 +1,3 @@
+---
+title: Static files
+---

docs/ui/base/index.mdx

@@ -1,3 +1,4 @@
 ---
 title: Base
+order: 2
 ---

docs/ui/components/index.mdx

@@ -1,3 +1,4 @@
 ---
 title: Components
+order: 4
 ---

docs/ui/forms/index.mdx

@@ -1,3 +1,4 @@
 ---
 title: Forms
+order: 5
 ---

docs/ui/getting-started/index.mdx

@@ -1,6 +1,7 @@
 ---
 title: Introduction
 description: Free and open-source HTML Dashboard UI Kit built on Bootstrap
+order: 1
 ---
 
 ## What is Tabler?

docs/ui/layout/index.mdx

@@ -1,3 +1,4 @@
 ---
 title: Layout
+order: 3
 ---

docs/ui/plugins/index.mdx

@@ -1,3 +1,4 @@
 ---
 title: Plugins
+order: 7
 ---

docs/ui/utilities/index.mdx

@@ -1,3 +1,4 @@
 ---
 title: Utilities
+order: 6
 ---