fix: add `overflow-wrap: word-break` to `body` (#889)

_sass/base.scss

@@ -23,6 +23,7 @@ body {
   line-height: $body-line-height;
   color: $body-text-color;
   background-color: $body-background-color;
+  overflow-wrap: break-word;
 }
 
 ol,