style: ensure component stylesheets lint

Update glob pattern in stylesheet lint scripts to ensure all stylesheets
are linted.

Fix #513

package.json

@@ -16,9 +16,9 @@
     "lint-fix-base": "npm run lint-base -- --fix",
     "lint-fix": "npm run lint-fix-base -- \"./**/*.{js,json,md}\"",
     "lint-styles-base": "stylelint --syntax scss",
-    "lint-styles": "npm run lint-styles-base -- app/*.scss app/components/*.scss",
+    "lint-styles": "npm run lint-styles-base -- app/*.scss app/components/**/*.scss",
     "lint-styles-fix-base": "npm run lint-styles-base -- --fix",
-    "lint-styles-fix": "npm run lint-styles-fix-base -- app/*.scss app/components/*.scss",
+    "lint-styles-fix": "npm run lint-styles-fix-base -- app/*.scss app/components/**/*.scss",
     "lint-check": "eslint --print-config .eslintrc.js | eslint-config-prettier-check",
     "lint-ci": "npm run lint && npm run lint-styles && npm run flow",
     "package": "npm run build && build --publish never",