Updated website to use axum

+ Its better than warp and rocket so far...
+ Also switched to 2021 Rust
+ Needs more refactoring but I wanted to get it to a "working" state
+ clippy + fmt

templates/404.html.tera

@@ -1,4 +1,4 @@
-{% extends "base" %}
+{% extends "base.html.tera" %}
 
 {% block command %}
 ./error.sh

templates/index.html.tera

@@ -1,4 +1,4 @@
-{% extends "base" %}
+{% extends "base.html.tera" %}
 
 {% block command %}
 ./about.sh

templates/listing.html.tera

@@ -1,4 +1,4 @@
-{% extends "base" %}
+{% extends "base.html.tera" %}
 
 {% block command %}
 ls {{ page_data.site_file.link_name }}

templates/rst_page.html.tera

@@ -1,4 +1,4 @@
-{% extends "base" %}
+{% extends "base.html.tera" %}
 
 {% block command %}
 cat {{ page }}.rst