Improve code quality & consistency

* Add EditorConfig
* Rebuild animate.css: remove an unused animation
* Slightly rewrite header part

layouts/_default/list.html

@@ -3,7 +3,7 @@
 {{ end }}
 
 {{ define "main" }}
-	<main class="site-main section-inner thin  animated fadeIn faster">
+	<main class="site-main section-inner thin animated fadeIn faster">
 		<h1>{{ .Title }}</h1>
 		{{- if .Content }}
 		<div class="content">
@@ -31,4 +31,4 @@
 {{ define "footer" }}
 {{ partialCached "footer.html" . }}
 	<script>let haveHeader = true;</script>
-{{ end }}
+{{ end }}