Add setting to display underscores as spaces in tags

client/html/post_readonly_sidebar.tpl

@@ -91,7 +91,7 @@
                         --><% if (ctx.canListPosts) { %><!--
                             --><a href='<%- ctx.formatClientLink('posts', {query: ctx.escapeColons(tag.names[0])}) %>' class='<%= ctx.makeCssName(tag.category, 'tag') %>'><!--
                         --><% } %><!--
-                            --><%- tag.names[0] %>&#32;<!--
+                            --><%- ctx.getPrettyTagName(tag.names[0]) %>&#32;<!--
                         --><% if (ctx.canListPosts) { %><!--
                             --></a><!--
                         --><% } %><!--

client/html/settings.tpl

@@ -63,6 +63,15 @@
                     checked: ctx.browsingSettings.autoplayVideos,
                 }) %>
             </li>
+
+            <li>
+                <%= ctx.makeCheckbox({
+                    text: 'Display underscores as spaces in tags',
+                    name: 'tag-underscores-as-spaces',
+                    checked: ctx.browsingSettings.tagUnderscoresAsSpaces,
+                }) %>
+                <p class='hint'>Display all underscores as if they were spaces. This is only a visual change, which means that you'll still have to use underscores when searching or editing tags.</p>
+            </li>
         </ul>
 
         <div class='messages'></div>

client/html/tag.tpl

@@ -1,5 +1,5 @@
 <div class='content-wrapper' id='tag'>
-    <h1><%- ctx.tag.names[0] %></h1>
+    <h1><%- ctx.getPrettyTagName(ctx.tag.names[0]) %></h1>
     <nav class='buttons'><!--
         --><ul><!--
             --><li data-name='summary'><a href='<%- ctx.formatClientLink('tag', ctx.tag.names[0]) %>'>Summary</a></li><!--