Improve component rendering styles

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

layouts/partials/components/hero/default.html

@@ -1,5 +1,5 @@
 <section class="hero">
-  <h1>{{ .Title }}</h1>
+  <h1 class="title">{{ .Title }}</h1>
   <div class="meta">
     <span class="date">{{ .Date | time.Format ":date_medium" }}</span>
     &middot;

layouts/partials/posts/list.html

@@ -3,7 +3,7 @@
     {{ if not .Params.private }}
       <a href="{{- .RelPermalink -}}" class="post">
         <h1 class="title">{{ .Title }}</h1>
-        <div class="summary">{{ .Summary }}</div>
+        <div class="summary">{{ .Summary | plainify }}</div>
         <div class="meta">
           <span class="date">{{ .Date | time.Format ":date_medium" }}</span>
           &middot;