docs: update docstring for install_rogue_tui

Author: ktej721

rogue/common/tui_installer.py

@@ -170,7 +170,15 @@ def install_rogue_tui(
         upgrade: bool = False,
         reinstall: bool = False,
     ) -> bool:
-        """Install rogue-tui from GitHub releases if not already installed."""
+        """Install rogue-tui from GitHub releases if not already installed.
+
+        Args:
+            upgrade: Force upgrade even if already installed.
+            reinstall: Force reinstallation even if already installed.
+
+        Returns:
+            bool: True if installation succeeded, False otherwise.
+        """
         console = Console()
         # Check if rogue-tui is already available
         if self._is_rogue_tui_installed() and not upgrade and not reinstall: