Remove version from title bar, improve copy feedback

- Remove version number from window title (still shown in About)
- Show "Copied!" over URL text with dimmed style instead of status bar message

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

gui/main_window.py

@@ -176,7 +176,7 @@ class MainWindow(QMainWindow):
 
     def setup_ui(self):
         """Setup the main UI components."""
-        self.setWindowTitle(f"MacroPad Server v{VERSION}")
+        self.setWindowTitle("MacroPad Server")
         self.setMinimumSize(600, 400)
         self.setStyleSheet(f"background-color: {THEME['bg_color']};")
 
@@ -472,9 +472,40 @@ class MainWindow(QMainWindow):
     def copy_url_to_clipboard(self):
         """Copy the web interface URL to clipboard."""
         url = self.ip_label.text()
+        if url == "Copied!":
+            return  # Already showing copied feedback
         clipboard = QApplication.clipboard()
         clipboard.setText(url)
-        self.status_bar.showMessage("URL copied to clipboard", 2000)
+
+        # Show "Copied!" feedback with dimmed style
+        self.ip_label.setText("Copied!")
+        self.ip_label.setStyleSheet(f"""
+            QPushButton {{
+                background-color: transparent;
+                color: {THEME['highlight_color']};
+                border: none;
+                padding: 4px 8px;
+            }}
+        """)
+
+        # Restore original URL after delay
+        QTimer.singleShot(1500, self._restore_url_label)
+
+    def _restore_url_label(self):
+        """Restore URL label after copy feedback."""
+        self.ip_label.setStyleSheet(f"""
+            QPushButton {{
+                background-color: transparent;
+                color: {THEME['fg_color']};
+                border: none;
+                padding: 4px 8px;
+            }}
+            QPushButton:hover {{
+                color: {THEME['accent_color']};
+                text-decoration: underline;
+            }}
+        """)
+        self.update_ip_label()
 
     def refresh_tabs(self):
         """Refresh the tab widget."""