[Feature Request] Add Feature to Queue Media Files When Multiple Files Are Launched via File Manager

[iamkartiknayak]

Issue/Description
Currently, when multiple media files are selected and launched via the file manager, Cosmic Player opens multiple instances for each file which is undesired. Rather queuing the selection would be ideal.

Expected Behavior
When multiple media files are selected and opened via the file manager, the player should:

• Add all the selected files to the playback queue.
• Start playing the first file in the queue while the rest are queued for continuous playback.
• Ensure the queue integrates smoothly with any existing media files already being played.