docs: improved SEO of documentation (#3117)

* docs: added description to documentation pages

* docs: added more descriptions

* docs: finished improving meta description

* docs: added searchbox structured data

* docs: added breadcrumbs structured data

* docs: added how to structured data

* docs: improved 404 page

* docs: added how-to frontmatter option

docs/content/user-guide/users/index.md

@@ -1,5 +1,6 @@
 ---
 sidebar_position: 1
+description: 'Medusa admin can be accessed more than one user. Merchants can have users added into their team to use the Medusa admin.'
 ---
 
 # Users Overview

docs/content/user-guide/users/profile.md

@@ -1,5 +1,7 @@
 ---
-sidebar_position: 1
+sidebar_position: 2
+description: 'This user guide explains how to manage user profile on the Medusa admin. Learn how to edit a user profile and reset user password.'
+addHowToData: true
 ---
 
 # Manage Profile

docs/content/user-guide/users/team.mdx

@@ -1,5 +1,7 @@
 ---
-sidebar_position: 2
+sidebar_position: 3
+description: 'This user guide explains how to manage the team on the Medusa admin. Learn how to invite users to your team and edit their details.'
+addHowToData: true
 ---
 
 import UiIcon from '@site/src/components/UiIcon';
@@ -12,6 +14,8 @@ In this document, you’ll learn how to invite new users, edit other users’ in
 
 You can view your team by going to Settings → The Team.
 
+---
+
 ## Manage Invites
 
 To add a new user to your team, you must invite them. Invites are sent by email, but you can also copy the invite link and send it personally to the user.
@@ -60,6 +64,8 @@ To remove an invite:
 3. Click on “Remove invitation” from the dropdown.
 4. Confirm removing the invitation by clicking the “Yes, remove” button in the pop-up.
 
+---
+
 ## Edit a User’s Details
 
 To edit a user’s details in your team:
@@ -69,6 +75,8 @@ To edit a user’s details in your team:
 3. In the new form, edit any of the user’s information.
 4. Once done, click on the Save button.
 
+---
+
 ## Remove a User
 
 :::warning