Don't justify contents by default

Justifying contents is discouraged in general, but furthermore produces some really ugly lines with Pico's sample contents

CHANGELOG.md

@@ -15,6 +15,7 @@ Released: -
 * [New] Update to API version 4 (no changes necessary)
 * [Changed] Include non-hidden pages without a title in the navigation menu;
             use the page ID as fallback for the missing page title
+* [Changed] Don't justify text contents by default
 * [Changed] Update syntax to Twig 3.3
 * [Changed] Update credits in theme footer
 ```

css/style.css

@@ -185,7 +185,6 @@ body {
 }
 
 p, td, th, li, dd {
-    text-align: justify;
     overflow-wrap: break-word;
     word-wrap: break-word;
 }