Close an open tag and cleanup spaces (#2782)

app/views/liquids/_codepen.html.erb

@@ -1,6 +1,6 @@
 <iframe
   height="<%= height %>"
-  src="<%= link %>?height=<%= height %>&<%= build_options %>&embed-version=2" 
+  src="<%= link %>?height=<%= height %>&<%= build_options %>&embed-version=2"
   scrolling="no"
   frameborder="no"
   allowtransparency="true"

app/views/liquids/_codesandbox.html.erb

@@ -1,5 +1,5 @@
 <iframe
-  src="<%= "https://codesandbox.io/embed/#{id}#{query}" %>" 
+  src="<%= "https://codesandbox.io/embed/#{id}#{query}" %>"
   style="width:100%; height:calc(300px + 8vw); border:0; border-radius: 4px; overflow:hidden;"
-  sandbox="allow-same-origin allow-scripts allow-forms allow-top-navigation-by-user-activation>"
+  sandbox="allow-same-origin allow-scripts allow-forms allow-top-navigation-by-user-activation">
 </iframe>

app/views/liquids/_instagram.html.erb

@@ -1,6 +1,6 @@
 <div class="instagram-position">
   <iframe
-    id="instagram-liquid-tag" 
+    id="instagram-liquid-tag"
     src="https://www.instagram.com/p/<%= id %>/embed/captioned"
     allowtransparency="true"
     frameborder="0"

app/views/liquids/_jsfiddle.html.erb

@@ -1,7 +1,7 @@
 <iframe
   src="<%= "#{link}/embedded/#{build_options}/dark" %>"
   width="100%"
-  height="<%= height%>"
+  height="<%= height %>"
   scrolling="no"
   frameborder="no"
   allowfullscreen

app/views/liquids/_soundcloud.html.erb

@@ -4,5 +4,5 @@
   scrolling="no"
   frameborder="no"
   allow="autoplay"
-  src="https://w.soundcloud.com/player/?url=<%= link %>&auto_play=false&color=%23000000&hide_related=false&show_comments=true&show_user=true&show_reposts=false&show_teaser=true" >
+  src="https://w.soundcloud.com/player/?url=<%= link %>&auto_play=false&color=%23000000&hide_related=false&show_comments=true&show_user=true&show_reposts=false&show_teaser=true">
 </iframe>

app/views/liquids/_stackblitz.html.erb

@@ -1,9 +1,9 @@
-<iframe
-	src="https://stackblitz.com/edit/<%= id %>?embed=1&<%= view %>&<%= file %>"
-	width="100%"
-	height="<%= height %>"
-	scrolling="no"
-	frameborder="no"
-	allowfullscreen
-	allowtransparency="true">
-</iframe>
+<iframe
+  src="https://stackblitz.com/edit/<%= id %>?embed=1&<%= view %>&<%= file %>"
+  width="100%"
+  height="<%= height %>"
+  scrolling="no"
+  frameborder="no"
+  allowfullscreen
+  allowtransparency="true">
+</iframe>