remove unused fs_extra dependency

Cargo.lock

@@ -690,12 +690,6 @@ dependencies = [
  "percent-encoding",
 ]
 
-[[package]]
-name = "fs_extra"
-version = "1.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
-
 [[package]]
 name = "fsevent-sys"
 version = "4.1.0"
@@ -3013,7 +3007,6 @@ dependencies = [
  "color-eyre",
  "extract-frontmatter",
  "eyre",
- "fs_extra",
  "futures",
  "grass",
  "hotwatch",

Cargo.toml

@@ -13,7 +13,6 @@ clap = { version = "4", features = ["derive"] }
 color-eyre = { version = "0.6", optional = true }
 extract-frontmatter = "4"
 eyre = "0.6"
-fs_extra = "1.2"
 futures = { version = "0.3", optional = true }
 grass = { version = "0.13", default-features = false }
 hotwatch = { version = "0.5", optional = true }