refactor: edit rules for yaraify

[Slavetomints]

Expands the aggregate rule files into a file system where each rule has its own file. This is for both the Betray and chattrigger RAT rules.

Example file tree:

├── docs
├── groups
│   └── betray
│       └── yara
│           └── MAL
│               ├── BETRAY
│               │   ├── DROPPER
│               │   │   └── AUG25
│               │   ├── RAT
│               │   │   └── AUG25
│               │   ├── RATON
│               │   │   └── AUG25
│               │   └── XWORM
│               │       └── AUG25
│               └── SALATSTEALER
│                   └── RAT
│                       └── AUG25
└── malware
    └── chattriggers-rat
        └── yara