Some tweaks for tooltips in settings

src/widget/form/settings/generalsettings.ui

@@ -264,7 +264,7 @@ instead of system taskbar.</string>
             <item row="0" column="0" colspan="2">
              <widget class="QLabel" name="autoAwayLabel">
               <property name="toolTip">
-               <string>Your status is changed to Away after set time of inactivity.</string>
+               <string>Your status is changed to Away after set period of inactivity.</string>
               </property>
               <property name="layoutDirection">
                <enum>Qt::LeftToRight</enum>
@@ -327,7 +327,7 @@ instead of system taskbar.</string>
             <item>
              <widget class="QCheckBox" name="showInFront">
               <property name="toolTip">
-               <string comment="toolTip for Show window setting">Focus qTox when you receive message.</string>
+               <string comment="toolTip for Focus window setting">Focus qTox when you receive message.</string>
               </property>
               <property name="text">
                <string>Focus window</string>

src/widget/form/settings/privacysettings.ui

@@ -54,15 +54,12 @@
        <item>
         <widget class="QCheckBox" name="cbKeepHistory">
          <property name="toolTip">
-          <string extracomment="History keeping still under developing. Log format changin is possible."/>
+          <string comment="toolTip for Keep History setting">History keeping is still in development.
+Save format changes are possible, which may result in data loss.</string>
          </property>
          <property name="text">
           <string>Keep History (unstable)</string>
          </property>
-         <property name="toolTip">
-          <string comment="toolTip for history setting">History is available in qTox, but we cannot promise that one day it will not dissapear without a trace :-/
-We will try our best to make sure that this will not happen though!</string>
-         </property>
         </widget>
        </item>
        <item alignment="Qt::AlignTop">