Filter out duplicate carousel cards

Also respect reply config option in carousel

script.js

@@ -165,9 +165,17 @@ const updateCarousel = function(slides, posts) {
     var newHTML = ` <!-- No Indicators -->`
     newHTML += `<!-- the slides -->
                 <div class="carousel-inner">
-                `
+                `;
+
+    let existingCards = [];
+
     for( let i = 0; i < posts.length; i++ ) {
         let post = posts[i];
+
+        if (existingCards.includes(post.id) || (!includeReplies && post.in_reply_to_id !== null)) continue;
+
+        existingCards.push(post.id);
+
         /*console.log( post.content )*/
         if ( i == 0 ) {
             newHTML += `<div class="carousel-item active" data-mdb-interval="${duration}" data-mdb-pause="false">`;