DlgTrackInfo: fix indentation in .ui file

Author: Swarnadip-Kar

src/library/dlgtrackinfo.ui

@@ -732,13 +732,13 @@
        <string>BPM</string>
       </attribute>
       <layout class="QVBoxLayout" name="verticalLayout_4">
-        <item>
-         <widget class="QPushButton" name="bpmLock">
-          <property name="toolTip">
-           <string>Lock or unlock the BPM and beatgrid for this track.</string>
-          </property>
-         </widget>
-        </item>
+       <item>
+        <widget class="QPushButton" name="bpmLock">
+         <property name="toolTip">
+          <string>Lock or unlock the BPM and beatgrid for this track.</string>
+         </property>
+        </widget>
+       </item>
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_4">
          <item>