[LyX/master] Differentiate backups from autosave files (#12659)

[Juergen Spitzmueller]

commit ef2ca233d65af55041062445e719c75bb8fbde33
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Thu Feb 16 14:42:44 2023 +0100

    Differentiate backups from autosave files (#12659)
---
 src/frontends/qt/ui/PrefDocHandlingUi.ui |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/frontends/qt/ui/PrefDocHandlingUi.ui b/src/frontends/qt/ui/PrefDocHandlingUi.ui
index 1546f39..80cbd66 100644
--- a/src/frontends/qt/ui/PrefDocHandlingUi.ui
+++ b/src/frontends/qt/ui/PrefDocHandlingUi.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>413</width>
-    <height>497</height>
+    <width>502</width>
+    <height>575</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -99,8 +99,11 @@
        <layout class="QHBoxLayout" name="horizontalLayout_2">
         <item>
          <widget class="QCheckBox" name="autoSaveCB">
+          <property name="toolTip">
+           <string>If this is checked, LyX saves a temporary copy of changed documents in the given interval. As opposed to the backup above, this snapshot will be removed when changes are being saved. If the application crashes with unsaved changes, the document can be restored to the latest snapshot.</string>
+          </property>
           <property name="text">
-           <string>&Backup documents, every</string>
+           <string>Make a&uto-save snapshots every</string>
           </property>
          </widget>
         </item>