refactor(config): move storybook and vitest configs to config/, import app.css in storybook preview

vitest.config.ts

@@ -20,7 +20,7 @@ export default defineConfig({
 	test: {
 		globals: true,
 		environment: "jsdom",
-		setupFiles: ["./src/shared/config/tests/setup.ts"],
+		setupFiles: ["./config/vitest/setup.ts"],
 		include: ["src/**/*.test.{js,ts}"],
 		exclude: ["src/**/*.e2e.{js,ts}"],
 		projects: [
@@ -30,7 +30,7 @@ export default defineConfig({
 					// The plugin will run tests for the stories defined in your Storybook config
 					// See options at: https://storybook.js.org/docs/next/writing-tests/integrations/vitest-addon#storybooktest
 					storybookTest({
-						configDir: path.join(dirname, ".storybook"),
+						configDir: path.join(dirname, "config/storybook"),
 					}),
 				],
 				test: {
@@ -45,7 +45,7 @@ export default defineConfig({
 							},
 						],
 					},
-					setupFiles: [".storybook/vitest.setup.ts"],
+					setupFiles: ["./config/storybook/vitest.setup.ts"],
 				},
 			},
 		],