Report mute/hardware status correctly, add Local Mic Mute, fix stale talking indicator

- Mute/deafen status now goes out through clientupdate instead of
  clientedit, which silently rejected client_input_muted/output_muted
  since they are runtime status, not editable client properties.
- Publish client_input_hardware so other clients see "Microphone
  Disabled" instead of silence while another tab holds the capture
  device; track input/output hardware flags for other clients too,
  and show a distinct grey "disabled" icon instead of reusing the red
  "muted" one for both the tree and the info panel.
- Implement TS3's Enable/Disable/Toggle Local Mic Mute hotkeys: they
  silence capture like a real mute, but never touch the published
  mute status or play a sound.
- A speaker's "talking" indicator only ever cleared when its
  zero-length end-of-burst voice packet arrived; if that one UDP
  packet was lost, the indicator stuck until their next burst. Add a
  watchdog that clears it after 200ms of silence from that speaker
  regardless.

ts3-client/swing/src/main/java/com/ts3client/ui/ServerTab.java

@@ -49,6 +49,7 @@ final class ServerTab implements ConnectionListener, ServerTreePanel.Actions {
     private String identityId = "";
 
     private boolean micMuted;
+    private boolean micLocalMuted;
     private boolean deafened;
     private boolean away;
     /** Away message currently published, empty when away carries no message. */
@@ -139,6 +140,10 @@ final class ServerTab implements ConnectionListener, ServerTreePanel.Actions {
         return micMuted;
     }
 
+    boolean isMicLocalMuted() {
+        return micLocalMuted;
+    }
+
     boolean isDeafened() {
         return deafened;
     }
@@ -160,6 +165,7 @@ final class ServerTab implements ConnectionListener, ServerTreePanel.Actions {
         if (!conn.isConnected()) return SelfState.DISCONNECTED;
         if (deafened) return SelfState.DEAFENED;
         if (micMuted) return SelfState.MIC_MUTED;
+        if (micLocalMuted) return SelfState.MIC_LOCAL_MUTED;
         if (away) return SelfState.AWAY;
         ClientEntry self = conn.getModel().getClient(conn.getSelfClientId());
         boolean talking = self != null && self.talking;
@@ -231,6 +237,13 @@ final class ServerTab implements ConnectionListener, ServerTreePanel.Actions {
         chatPanel.appendSystem(muted ? "Microphone muted." : "Microphone active.");
     }
 
+    /** TS3's "Local Mic Mute": silences capture without publishing a status change. */
+    void setMicLocalMuted(boolean muted) {
+        micLocalMuted = muted;
+        conn.setMicLocalMuted(muted);
+        chatPanel.appendSystem(muted ? "Microphone locally muted." : "Microphone locally unmuted.");
+    }
+
     void setDeafened(boolean deaf) {
         deafened = deaf;
         conn.setDeafened(deaf);
@@ -484,6 +497,7 @@ final class ServerTab implements ConnectionListener, ServerTreePanel.Actions {
             connecting = false;
             treePanel.setSelfClientId(conn.getSelfClientId());
             micMuted = false;
+            micLocalMuted = false;
             deafened = false;
             away = false;
             awayMessage = "";