Qt: Add note to enable mouse mapping for lightguns/mouse

src/duckstation-qt/controllerbindingwidget_guncon.ui

@@ -46,7 +46,7 @@
         <item>
          <widget class="QLabel" name="label_4">
           <property name="text">
-           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;By default, lightguns will use the mouse pointer. To use the mouse, you &lt;span style=&quot; font-weight:700;&quot;&gt;do not&lt;/span&gt; need to configure any bindings apart from the trigger and buttons. Aiming only needs to be set when you want to use multiple mice.&lt;/p&gt;&lt;p&gt;If you want to use a controller, or lightgun which simulates a controller instead of a mouse, then you should bind it to Relative Aiming. Otherwise, Relative Aiming should be &lt;span style=&quot; font-weight:700;&quot;&gt;left unbound&lt;/span&gt;.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;By default, lightguns will use the mouse pointer. To use the mouse, you &lt;span style=&quot; font-weight:700;&quot;&gt;do not&lt;/span&gt; need to configure any bindings apart from the trigger and buttons. Aiming only needs to be set when you want to use multiple mice.&lt;/p&gt;&lt;p&gt;If you want to use a controller, or lightgun which simulates a controller instead of a mouse, then you should bind it to Relative Aiming. Otherwise, Relative Aiming should be &lt;span style=&quot; font-weight:700;&quot;&gt;left unbound&lt;/span&gt;.&lt;/p&gt;&lt;p&gt;&lt;span style=&quot; font-weight:700;&quot;&gt;NOTE: &lt;/span&gt;Mouse mapping must be enabled in Global Settings to bind your PC's mouse.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
           </property>
           <property name="alignment">
            <set>Qt::AlignmentFlag::AlignLeading|Qt::AlignmentFlag::AlignLeft|Qt::AlignmentFlag::AlignTop</set>
@@ -326,6 +326,19 @@
    </item>
    <item row="0" column="2">
     <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <spacer name="verticalSpacer_6">
+       <property name="orientation">
+        <enum>Qt::Orientation::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>0</width>
+         <height>0</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
      <item>
       <widget class="QGroupBox" name="groupBox_7">
        <property name="title">

src/duckstation-qt/controllerbindingwidget_justifier.ui

@@ -46,7 +46,7 @@
         <item>
          <widget class="QLabel" name="label_4">
           <property name="text">
-           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;By default, lightguns will use the mouse pointer. To use the mouse, you &lt;span style=&quot; font-weight:700;&quot;&gt;do not&lt;/span&gt; need to configure any bindings apart from the trigger and buttons. Aiming only needs to be set when you want to use multiple mice.&lt;/p&gt;&lt;p&gt;If you want to use a controller, or lightgun which simulates a controller instead of a mouse, then you should bind it to Relative Aiming. Otherwise, Relative Aiming should be &lt;span style=&quot; font-weight:700;&quot;&gt;left unbound&lt;/span&gt;.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;By default, lightguns will use the mouse pointer. To use the mouse, you &lt;span style=&quot; font-weight:700;&quot;&gt;do not&lt;/span&gt; need to configure any bindings apart from the trigger and buttons. Aiming only needs to be set when you want to use multiple mice.&lt;/p&gt;&lt;p&gt;If you want to use a controller, or lightgun which simulates a controller instead of a mouse, then you should bind it to Relative Aiming. Otherwise, Relative Aiming should be &lt;span style=&quot; font-weight:700;&quot;&gt;left unbound&lt;/span&gt;.&lt;/p&gt;&lt;p&gt;&lt;span style=&quot; font-weight:700;&quot;&gt;NOTE: &lt;/span&gt;Mouse mapping must be enabled in Global Settings to bind your PC's mouse.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
           </property>
           <property name="alignment">
            <set>Qt::AlignmentFlag::AlignLeading|Qt::AlignmentFlag::AlignLeft|Qt::AlignmentFlag::AlignTop</set>
@@ -326,6 +326,19 @@
    </item>
    <item row="0" column="2">
     <layout class="QVBoxLayout" name="verticalLayout">
+     <item>
+      <spacer name="verticalSpacer_6">
+       <property name="orientation">
+        <enum>Qt::Orientation::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>0</width>
+         <height>0</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
      <item>
       <widget class="QGroupBox" name="groupBox_7">
        <property name="title">

src/duckstation-qt/controllerbindingwidget_mouse.ui

@@ -89,6 +89,9 @@
    </item>
    <item row="1" column="1">
     <layout class="QVBoxLayout" name="verticalLayout_2">
+     <property name="spacing">
+      <number>15</number>
+     </property>
      <item>
       <spacer name="verticalSpacer_3">
        <property name="orientation">
@@ -102,6 +105,13 @@
        </property>
       </spacer>
      </item>
+     <item>
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;&lt;span style=&quot; font-weight:700;&quot;&gt;NOTE: &lt;/span&gt;Mouse mapping must be enabled in Global Settings to bind your PC's mouse.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <layout class="QVBoxLayout" name="verticalLayout">
        <item>