Docs: Stackblitz Support (pinterest#3279)

.vscode/tasks.json

@@ -3,7 +3,9 @@
   "tasks": [
     {
       "type": "shell",
-      "command": "yarn start",
+      "osx": {
+        "command": "yarn start"
+      },
       "problemMatcher": [],
       "label": "Run yarn start on startup",
       "presentation": {

package.json

@@ -193,5 +193,8 @@
     "type": "git",
     "url": "https://github.com/pinterest/gestalt"
   },
+  "stackblitz": {
+    "startCommand": "./scripts/stackblitz.sh"
+  },
   "sideEffects": false
 }

scripts/stackblitz.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+# Simplified start script for the stack blitz environment, which can't handle multiple watchers
+set -x
+set -e
+
+(cd packages/gestalt-design-tokens && yarn build)
+(cd packages/gestalt && yarn build)
+(cd packages/gestalt-charts && yarn build)
+(cd packages/gestalt-datepicker && yarn build)
+(cd docs && yarn build-metadata)
+(cd docs && (npx next dev))
+