Sort and dedupe .gitignore files (#24491)

Release Notes:

- N/A

.gitignore

@@ -1,36 +1,35 @@
-/.direnv
-.envrc
-.idea
-**/target
+**/*.db
 **/cargo-target
-/zed.xcworkspace
-.DS_Store
-/plugins/bin
-/script/node_modules
-/crates/theme/schemas/theme.json
-/crates/collab/seed.json
-/crates/zed/resources/flatpak/flatpak-cargo-sources.json
-/dev.zed.Zed*.json
-/assets/*licenses.*
+**/target
 **/venv
-.build
 *.wasm
-Packages
 *.xcodeproj
-xcuserdata/
-DerivedData/
+.DS_Store
+.blob_store
+.build
+.envrc
+.flatpak-builder
+.idea
+.netrc
+.pytest_cache
+.swiftpm
 .swiftpm/config/registries.json
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
-.netrc
-.swiftpm
-**/*.db
-.pytest_cache
 .venv
-.blob_store
 .vscode
 .wrangler
-.flatpak-builder
-.envrc
+/.direnv
+/assets/*licenses.*
+/crates/collab/seed.json
+/crates/theme/schemas/theme.json
+/crates/zed/resources/flatpak/flatpak-cargo-sources.json
+/dev.zed.Zed*.json
+/plugins/bin
+/script/node_modules
+/zed.xcworkspace
+DerivedData/
+Packages
+xcuserdata/
 
 # Don't commit any secrets to the repo.
 .env.secret.toml