fix: single mode resize bug

Author: barry-ran

QtScrcpy/ui/dialog.cpp

@@ -671,7 +671,7 @@ void Dialog::on_useSingleModeCheck_clicked()
         ui->rightWidget->show();
     }
 
-    resize(layout()->sizeHint().width(), height());
+    adjustSize();
 }
 
 void Dialog::on_serialBox_currentIndexChanged(const QString &arg1)

QtScrcpy/ui/dialog.ui

@@ -119,6 +119,12 @@
            </item>
            <item>
             <widget class="QCheckBox" name="autoUpdatecheckBox">
+             <property name="sizePolicy">
+              <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+               <horstretch>0</horstretch>
+               <verstretch>0</verstretch>
+              </sizepolicy>
+             </property>
              <property name="text">
               <string>auto update</string>
              </property>
@@ -975,20 +981,38 @@
             </property>
             <item>
              <widget class="QPushButton" name="installSndcpyBtn">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
               <property name="text">
                <string>install sndcpy</string>
               </property>
              </widget>
             </item>
             <item>
              <widget class="QPushButton" name="startAudioBtn">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
               <property name="text">
                <string>start audio</string>
               </property>
              </widget>
             </item>
             <item>
              <widget class="QPushButton" name="stopAudioBtn">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
               <property name="text">
                <string>stop audio</string>
               </property>