Simplify stylesheet on QToolButton

src/collection/collectionfilterwidget.ui

@@ -39,9 +39,8 @@
    <item>
     <widget class="QToolButton" name="options">
      <property name="styleSheet">
-      <string notr="true">QToolButton, QToolButton:hover, QToolButton:pressed {
+      <string notr="true">padding-right: 16px;
-  padding-right: 16px;
+</string>
-}</string>
      </property>
      <property name="iconSize">
       <size>

src/core/mainwindow.ui

@@ -152,10 +152,7 @@
                    <bool>false</bool>
                   </property>
                   <property name="styleSheet">
-                   <string notr="true">QToolButton, QToolButton:hover, QToolButton:pressed {
+                   <string notr="true">padding-right: 16px;</string>
-  padding-right: 16px;
-}
-</string>
                   </property>
                   <property name="iconSize">
                    <size>

src/covermanager/albumcovermanager.ui

@@ -88,9 +88,8 @@
           <item>
            <widget class="QToolButton" name="view">
             <property name="styleSheet">
-             <string notr="true">QToolButton, QToolButton:hover, QToolButton:pressed {
+             <string notr="true">padding-right: 16px;
-  padding-right: 16px;
+</string>
-}</string>
             </property>
             <property name="text">
              <string>View</string>

src/internet/internetsearchview.ui

@@ -55,9 +55,7 @@
              </size>
             </property>
             <property name="styleSheet">
-             <string notr="true">QToolButton, QToolButton:hover, QToolButton:pressed {
+             <string notr="true">padding-right: 16px;
-  padding-right: 16px;
-}
 </string>
             </property>
             <property name="iconSize">