Qt: Consistently use QToolButton for "restore default" action

src/duckstation-qt/audiosettingswidget.ui

@@ -255,7 +255,7 @@
       <item row="0" column="3">
        <widget class="QToolButton" name="resetVolume">
         <property name="toolTip">
-         <string>Reset Volume</string>
+         <string>Reset Output Volume</string>
         </property>
         <property name="icon">
          <iconset theme="restart-line"/>

src/duckstation-qt/gamesummarywidget.ui

@@ -190,12 +190,15 @@
       </widget>
      </item>
      <item>
-      <widget class="QPushButton" name="restoreTitle">
+      <widget class="QToolButton" name="restoreTitle">
        <property name="enabled">
         <bool>false</bool>
        </property>
-       <property name="text">
-        <string>Restore</string>
+       <property name="toolTip">
+        <string>Restore Title</string>
+       </property>
+       <property name="icon">
+        <iconset theme="restart-line"/>
        </property>
       </widget>
      </item>
@@ -219,9 +222,6 @@
      </item>
      <item>
       <widget class="QToolButton" name="compatibilityComments">
-       <property name="text">
-        <string>Comments</string>
-       </property>
        <property name="icon">
         <iconset theme="information-line"/>
        </property>
@@ -291,12 +291,15 @@
       </widget>
      </item>
      <item>
-      <widget class="QPushButton" name="restoreRegion">
+      <widget class="QToolButton" name="restoreRegion">
        <property name="enabled">
         <bool>false</bool>
        </property>
-       <property name="text">
-        <string>Restore</string>
+       <property name="toolTip">
+        <string>Restore Region</string>
+       </property>
+       <property name="icon">
+        <iconset theme="restart-line"/>
        </property>
       </widget>
      </item>

src/duckstation-qt/inputbindingdialog.ui

@@ -117,7 +117,7 @@
       <item row="0" column="3">
        <widget class="QToolButton" name="resetSensitivity">
         <property name="toolTip">
-         <string>Reset</string>
+         <string>Reset Sensitivity</string>
         </property>
         <property name="icon">
          <iconset theme="restart-line"/>
@@ -127,7 +127,7 @@
       <item row="1" column="3">
        <widget class="QToolButton" name="resetDeadzone">
         <property name="toolTip">
-         <string>Reset</string>
+         <string>Reset Deadzone</string>
         </property>
         <property name="icon">
          <iconset theme="restart-line"/>