Update WebHost to include new tutorial landing page.

- Added MSU-1 setup guide
- Updated header and landing page for title change
- Re-structured tutorial files
- Added tutorials.json, which is used when constructing the new /tutorial page

WebHostLib/templates/header/baseHeader.html

@@ -13,7 +13,7 @@
         <div id="base-header-right">
             <a href="/player-settings">start game</a>
             <a href="/uploads">host game</a>
-            <a href="/tutorial">setup guide</a>
+            <a href="/tutorial">setup guides</a>
             <a href="/generate">upload config</a>
             <a href="https://discord.gg/8Z65BR2">discord</a>
         </div>