* Add javadocs to methods
* Rename 2 methods for clarity, and add Nullable tag
* Rename local vars for consistency / correctness
* Simplify setHoveredFriend to allow clearer variable names
* Finalize local vars and add KEY_PREFIX constant
* Tweak 2 log messages for clarity and crash-proofing
* Inline the comments added to generic callbacks
* Skip the tag removal on MenuEntryAdded targets