UI: allow drops for semap document list

src/ui/semesterapparat_ui.ui

@@ -54,6 +54,9 @@
      <verstretch>0</verstretch>
     </sizepolicy>
    </property>
+   <property name="acceptDrops">
+    <bool>true</bool>
+   </property>
    <widget class="QWidget" name="verticalLayoutWidget">
     <property name="geometry">
      <rect>
@@ -68,6 +71,9 @@
       <layout class="QHBoxLayout" name="horizontalLayout">
        <item>
         <layout class="QGridLayout" name="gridLayout">
+         <property name="leftMargin">
+          <number>3</number>
+         </property>
          <item row="0" column="0">
           <widget class="QTabWidget" name="tabWidget">
            <property name="focusPolicy">
@@ -560,7 +566,7 @@
                   <bool>true</bool>
                  </property>
                  <property name="dragDropMode">
-                  <enum>QAbstractItemView::DragOnly</enum>
+                  <enum>QAbstractItemView::NoDragDrop</enum>
                  </property>
                  <property name="defaultDropAction">
                   <enum>Qt::LinkAction</enum>
@@ -1631,7 +1637,7 @@ Einige Angaben müssen ggf angepasst werden</string>
              </item>
              <item>
               <property name="text">
-               <string>Signaturen aktualisieren</string>
+               <string>Medien bearbeiten</string>
               </property>
              </item>
             </widget>