Skip replacing meta/viewport

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

@@ -2479,15 +2479,17 @@ public class HtmlHelper {
         // https://developer.mozilla.org/en-US/docs/Mozilla/Mobile/Viewport_meta_tag
         // https://drafts.csswg.org/css-device-adapt/#viewport-meta
         Elements meta = document.select("meta").select("[name=viewport]");
+        if (meta.size() != 1)
+            return;
+
         // Note that the browser will recognize meta elements in the body too
         if (overview) {
             // fit width
-            meta.remove();
+            //meta.remove();
-            document.head().prependElement("meta")
+            //document.head().prependElement("meta")
-                    .attr("name", "viewport")
+            //        .attr("name", "viewport")
-                    .attr("content", "width=device-width");
+            //        .attr("content", "width=device-width");
         } else {
-            if (meta.size() == 1) {
             String content = meta.attr("content");
             String[] param = content.split("[;,]");
             for (int i = 0; i < param.length; i++) {
@@ -2510,12 +2512,6 @@ public class HtmlHelper {
                 }
             }
             meta.attr("content", TextUtils.join(",", param));
-            } else {
-                meta.remove();
-                document.head().prependElement("meta")
-                        .attr("name", "viewport")
-                        .attr("content", "width=device-width, initial-scale=1.0");
-            }
         }
 
         if (BuildConfig.DEBUG)