Always synchronize clipboard on explicit COPY/CUT

If --no-clipboard-autosync is enabled, the automatic clipboard
synchronization performed whenever the device clipboard changes is
disabled.

But on explicit COPY and CUT scrcpy shortcuts (MOD+c and MOD+x), the
clipboard should still be synchronized, so that it remains possible to
copy-paste from the device to the computer.

This is consistent with the behavior of MOD+v, which pastes the computer
clipboard to the device.

Refs #2228 <https://github.com/Genymobile/scrcpy/issues/2228>
Refs #2817 <https://github.com/Genymobile/scrcpy/pull/2817>
PR #2834 <https://github.com/Genymobile/scrcpy/pull/2834>

server/src/test/java/com/genymobile/scrcpy/ControlMessageReaderTest.java

@@ -219,6 +219,7 @@ public class ControlMessageReaderTest {
         ByteArrayOutputStream bos = new ByteArrayOutputStream();
         DataOutputStream dos = new DataOutputStream(bos);
         dos.writeByte(ControlMessage.TYPE_GET_CLIPBOARD);
+        dos.writeByte(ControlMessage.COPY_KEY_COPY);
 
         byte[] packet = bos.toByteArray();
 
@@ -226,6 +227,7 @@ public class ControlMessageReaderTest {
         ControlMessage event = reader.next();
 
         Assert.assertEquals(ControlMessage.TYPE_GET_CLIPBOARD, event.getType());
+        Assert.assertEquals(ControlMessage.COPY_KEY_COPY, event.getCopyKey());
     }
 
     @Test