Switch to side-by-side view

--- a/src/qtgui/i18n/recoll_zh.ts
+++ b/src/qtgui/i18n/recoll_zh.ts
@@ -506,7 +506,7 @@
     <name>Preview</name>
     <message>
         <source>Close Tab</source>
-        <translation>关闭标签页</translation>
+        <translation type="vanished">关闭标签页</translation>
     </message>
     <message>
         <source>Cancel</source>
@@ -555,6 +555,14 @@
     <message>
         <source>Error while loading file</source>
         <translation>文件载入出错</translation>
+    </message>
+    <message>
+        <source>Form</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Tab 1</source>
+        <translation type="unfinished"></translation>
     </message>
 </context>
 <context>
@@ -1077,7 +1085,7 @@
     </message>
     <message>
         <source>Content has been indexed for these mime types:</source>
-        <translation>已经为这些文件类型索引其内容:</translation>
+        <translation type="vanished">已经为这些文件类型索引其内容:</translation>
     </message>
     <message>
         <source>Index not up to date for this file. Refusing to risk showing the wrong entry. Click Ok to update the index for this file, then re-run the query when indexing is done. Else, Cancel.</source>
@@ -1280,6 +1288,10 @@
     </message>
     <message>
         <source>Results</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Content has been indexed for these MIME types:</source>
         <translation type="unfinished"></translation>
     </message>
 </context>