refactor(ahk): remove derive-ahk and references

This commit finally sunsets the derive-ahk proc macro and the
ahk-library cli command.

There is now a dedicated, stripped down komorebi.ahk example on the docs
website which mirrors the contents and style of the sample whkdrc:
https://lgug2z.github.io/komorebi/common-workflows/autohotkey.html

komorebic/Cargo.toml

@@ -11,7 +11,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-derive-ahk = { path = "../derive-ahk" }
 komorebi-core = { path = "../komorebi-core" }
 komorebi-client = { path = "../komorebi-client" }
 
@@ -21,7 +20,6 @@ color-eyre = { workspace = true }
 dirs = { workspace = true }
 dunce = { workspace = true }
 fs-tail = "0.1"
-heck = "0.5"
 lazy_static = "1"
 miette = { version = "7", features = ["fancy"] }
 paste = "1"