chore: add check:format script

.prettierignore

@@ -0,0 +1,29 @@
+/.vscode
+
+/dev/*/.next
+/dev/*/.sanity
+/dev/*/build
+/dev/*/dist
+/dev/*/node_modules
+/dev/*/public
+/dev/*/static
+
+/etc
+
+/examples/*/.sanity
+/examples/*/dist
+/examples/*/node_modules
+/examples/*/static
+
+/packages/*/coverage
+/packages/*/lib
+/packages/*/node_modules
+
+/packages/@sanity/*/coverage
+/packages/@sanity/*/lib
+/packages/@sanity/*/node_modules
+/packages/@sanity/client/umd
+/packages/@sanity/cli/bin/sanity-cli.js
+/packages/@sanity/cli/templates
+
+/test/v2-studio/dist

package.json

@@ -16,6 +16,7 @@
     "build": "lerna run --scope '{@sanity/*,groq,sanity}' build",
     "build:cli": "run-s build",
     "build:dts": "tsc --build tsconfig.lib.json",
+    "check:format": "yarn prettier --check",
     "check:packages": "lerna run check:package",
     "clean": "lerna run --scope '{@sanity/*,groq,sanity}' clean",
     "clean:deps": "rimraf packages/@sanity/*/node_modules packages/*/node_modules node_modules",