Fix AttributeError: 'Channel' object has no attribute 'info' (#326)

[CoderBoxer]

Overview

Fixes an AttributeError crash that occurs when attempting to play or favorite streams from Xtream providers.

Changes

• Refactored the string construction inside both before_play and on_favorite_button_toggled.
• Replaced direct .info access with getattr(channel, 'info', '') (or self.active_channel).
• This defensively handles Xtream Channel objects that lack the .info property, preventing a hard crash while safely preserving the data and ::: string formatting for standard M3U channels that still rely on it.

Closes #326