Big refactor, many minor fixes (#441)

* Big refactor, many minor fixes

* Link fixes, icon edits

* Index and ToC fixes

* update icons in theme lib and add to device guides index

* WIP - refactor Initial setup, LAN, FF, others

* First draft ready, many fixes and edits

* Ooops - minor edits and changes on initial setup

* Add change password guide (try 2).

* Remove change password menu item from guides

* Fix display bug, think different

---------

Co-authored-by: Lucy Cifferello <12953208+elvece@users.noreply.github.com>
Co-authored-by: gStart9 <george@start9labs.com>

site/source/user-manual/index.rst

@@ -3,26 +3,35 @@
 ===========
 User Manual
 ===========
-
 Welcome to the StartOS user manual. Here you will discover all that your server can do!
 
+.. raw:: html
+
+  <div class="topics-grid grid-container full">
+
+  <div class="grid-x grid-margin-x">
+
+.. topic-box::
+  :title: Getting Started
+  :link: getting-started
+  :icon: scylla-icon scylla-icon--getting-started
+  :class: large-4
+  :anchor: Begin
+
+  Get started with your Start9 server
+
+.. topic-box::
+  :title: StartOS Overview
+  :link: overview
+  :icon: scylla-icon scylla-icon--roadmap
+  :class: large-4
+  :anchor: Explore
+
+  Get the lay of the sovereign land
+
 .. toctree::
-  :includehidden:
+  :hidden:
   :maxdepth: 2
 
-  initial-setup
-  connecting/index
-  dashboard-overview
-  updating
-  backups/index
-  flashing/index
-  reset-password
-  customize
-  managing-services
-  service-guides/index
-  sessions
-  wifi
-  ssh
-  alt-registries
-  device-guides/index
-  upgrade-hardware/index
+  getting-started/index
+  overview/index