remove homepage, add /about, change navbar

src/content/about.md

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+# What is Permap
+
+Permap is a open source geo-message-board software written in OCaml.
+
+Permap was initially made to be a gardening/permaculture forum.
+Permap's aim is to help people find friends with similar interests around them
+and build local communities.
+
+You can make threads with geographical coordinate, 
+this way you can find people near you doing interesting stuffs, 
+socialize with them and share local knowledge. 
+
+## Permap's future
+
+- Make permap federate
+
+- More than coordinates
+
+Make threads on anything with a geographical position.
+Instead of making threads with a simple (latitude * longitude) data,
+we want to be able to make threads on any OpenStreetMap's item/ActivityPub object 
+that can resolve to a geographical position.
+

src/content/assets/css/style.css

@@ -1,5 +1,5 @@
 body {
-  padding-top: 3rem;
+  padding-top: 0rem;
   padding-bottom: 3rem;
   color: #5a5a5a;
   background-color: #e8eaf6;

src/content/index.md

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-# Hello world
-Permap is cool