Refactor Makefile to streamline build and test processes

- Consolidated build commands by replacing 'build-snapshot-single' with a generic 'build' target.
- Enhanced test commands to include shuffling and a race detector for improved reliability.
- Updated help output to reflect new build and test targets, improving usability for developers.

Makefile

@@ -1,22 +1,28 @@
-run: build-snapshot-single ## Run the application
+run: build ## Run the application
 	@dist/default_windows_amd64_v1/steamcache2.exe
-run-debug: build-snapshot-single ## Run the application with debug logging
+run-debug: build ## Run the application with debug logging
 	@dist/default_windows_amd64_v1/steamcache2.exe --log-level debug
 
+build: deps ## Build a snapshot of the application for the current platform (uses -short for fast feedback)
+	@go test -short -v ./...
+	@goreleaser build --single-target --snapshot --clean
+
 test: deps ## Run all tests
-	@go test -v ./...
+	@go test -shuffle=on -timeout=5m -v ./...
+
+test-race: deps ## Run all tests with the race detector
+	@go test -race -shuffle=on -timeout=5m -v ./...
 
 deps: ## Download dependencies
 	@go mod tidy
 
-build-snapshot-single: deps ## Build a snapshot of the application for the current platform (uses -short for fast feedback)
-	@go test -short -v ./...
-	@goreleaser build --single-target --snapshot --clean
 
 help: ## Show this help message
 	@echo steamcache2 Makefile
 	@echo Available targets:
 	@echo   run                Run the application
 	@echo   run-debug          Run the application with debug logging
+	@echo   build              Build the application
 	@echo   test               Run all tests
+	@echo   test-race          Run all tests with the race detector
 	@echo   deps               Download dependencies