Add Category-Based Threshold Functionality

[KleinerCodeDrago]

Issue Description

Currently, the userscript adjusts Twitch chat visibility based on viewer thresholds set by the user. This enhancement request is to add functionality for category-based saving, allowing different thresholds for different streaming categories (e.g., Just Chatting, GTA V, Just sleeping, etc) This feature would enable users to have more control over chat visibility, depending on the type of content being streamed.

Expected Behavior

The script should allow users to set different thresholds for different Twitch streaming categories. For instance, a higher viewer count threshold might be preferred for gaming streams, while a lower threshold could be more suitable for just chatting streams.

Actual Behavior

Currently, the script applies a universal viewer count threshold across all Twitch streaming categories.