Replace dirs-next with the original dirs crate

The `dirs` crate was forked as `dirs-next` after the original repos were archived.
The fork hasn't released a new version since October 2020, while the original
has been taken off the shelf and has seen updates since then.

Cargo.toml

@@ -27,7 +27,7 @@ application = [
 minimal-application = [
     "atty",
     "clap",
-    "dirs-next",
+    "dirs",
     "paging",
     "regex-onig",
     "wild",
@@ -61,7 +61,7 @@ semver = "1.0"
 path_abs = { version = "0.5", default-features = false }
 clircle = "0.3"
 bugreport = { version = "0.5.0", optional = true }
-dirs-next = { version = "2.0.0", optional = true }
+dirs = { version = "5.0.0", optional = true }
 grep-cli = { version = "0.1.7", optional = true }
 regex = { version = "1.7.0", optional = true }
 walkdir = { version = "2.0", optional = true }
@@ -83,7 +83,7 @@ optional = true
 features = ["wrap_help", "cargo"]
 
 [target.'cfg(target_os = "macos")'.dependencies]
-dirs-next = "2.0.0"
+dirs = "5.0.0"
 plist = "1.3"
 
 [dev-dependencies]