Prevent extra newlines

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -844,12 +844,34 @@ public class HtmlHelper {
                 for (Element col : row.children()) {
                     Element next = col.nextElementSibling();
 
+                    // Get nodes with content
+                    List<Node> nodes = new ArrayList<>(col.childNodes());
+                    while (nodes.size() > 0) {
+                        Node first = nodes.get(0);
+                        if (first instanceof TextNode && ((TextNode) first).isBlank()) {
+                            nodes.remove(0);
+                            continue;
+                        }
+
+                        Node last = nodes.get(nodes.size() - 1);
+                        if (last instanceof TextNode && ((TextNode) last).isBlank()) {
+                            nodes.remove(nodes.size() - 1);
+                            continue;
+                        }
+
+                        break;
+                    }
+
                     // Merge single images into next column
-                    if (col.childNodeSize() == 1 &&
-                            (next == null ||
+                    if (nodes.size() == 1) {
+                        Node lonely = nodes.get(0);
+
+                        // prevent extra newlines
+                        lonely.removeAttr("x-paragraph");
+
+                        if (next == null ||
                                 next.attr("x-align")
-                                            .equals(col.attr("x-align")))) {
-                        Node lonely = col.childNode(0);
+                                        .equals(col.attr("x-align"))) {
                             if (lonely instanceof Element &&
                                     "img".equals(lonely.nodeName())) {
                                 lonely.remove();
@@ -859,6 +881,7 @@ public class HtmlHelper {
                                     continue;
                             }
                         }
+                    }
 
                     if (merge.size() > 0) {
                         for (int m = merge.size() - 1; m >= 0; m--)