chore: update categories in Cargo.toml for better classification

Cargo.toml

@@ -8,7 +8,7 @@ readme = "README.md"
 homepage = "https://github.com/yzzting/commit_crafter"
 repository = "https://github.com/yzzting/commit_crafter"
 keywords = ["git", "commit-message", "ai", "nlp", "productivity"]
-categories = ["external-tools", "text-processing", "development-tools::version-control"]
+categories = ["development-tools", "text-processing", "command-line-utilities"]
 description = "AI powered tool for Git commit message generator"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html