Add switch invidious instance btn to all chan tabs

src/invidious/views/community.ecr

@@ -40,6 +40,9 @@
 <div class="pure-g h-box">
     <div class="pure-u-1-3">
         <a href="https://www.youtube.com/channel/<%= channel.ucid %>/community"><%= translate(locale, "View channel on YouTube") %></a>
+        <div class="pure-u-1 pure-md-1-3">
+            <a href="/redirect?referer=<%= env.get?("current_page") %>"><%= translate(locale, "Switch Invidious Instance") %></a>
+        </div>
         <% if !channel.auto_generated %>
             <div class="pure-u-1 pure-md-1-3">
                 <a href="/channel/<%= channel.ucid %>"><%= translate(locale, "Videos") %></a>

src/invidious/views/playlists.ecr

@@ -42,6 +42,11 @@
         <div class="pure-u-1 pure-md-1-3">
             <a href="https://www.youtube.com/channel/<%= channel.ucid %>/playlists"><%= translate(locale, "View channel on YouTube") %></a>
         </div>
+
+        <div class="pure-u-1 pure-md-1-3">
+            <a href="/redirect?referer=<%= env.get?("current_page") %>"><%= translate(locale, "Switch Invidious Instance") %></a>
+        </div>
+
         <div class="pure-u-1 pure-md-1-3">
             <a href="/channel/<%= channel.ucid %>"><%= translate(locale, "Videos") %></a>
         </div>