Update the website layout with narrower default width and better typography (#1753)

- Reduces the default width from 1600px to 1200px of the web page and reduce the size of various elements and text. This fixes the problem that I designed the website assuming everyone is viewing from the same 2560px wide screen as I used to design it, which is a bad assumption. Most websites are around the 1200px mark.
- Removes the use of the EB Garamond font, replacing more headers with a bold Inter instead, leaving only Bona Nova for h1 headers at the tops of pages (except the home page, which might have further revamp soon).
- Adds nice flavor graphics to a redesigned volunteer page.
- Cleans up and organizes the Zola templating code and CSS style sheets.
- Improves image carousel to fade out images when dragged past the start or end.

website/content/license.md

@@ -3,7 +3,7 @@ title = "Graphite license"
 +++
 
 <section class="reading-material">
-<div class="section">
+<div class="block">
 
 # Graphite license
 
@@ -15,7 +15,7 @@ The source code [available on GitHub](https://github.com/GraphiteEditor/Graphite
 
 Visual assets, including but not limited to logos, icons, SVG code, branding imagery, and sample artwork are excluded from this license and held under copyright by their respective owners. Learn about the [Graphite brand](/logo) for more information.
 
-----
+---
 
 Apache License  
 Version 2.0, January 2004