Emdash source with visual editor image upload fix

Fixes:
1. media.ts: wrap placeholder generation in try-catch
2. toolbar.ts: check r.ok, display error message in popover

packages/gutenberg-to-portable-text/package.json

@@ -0,0 +1,53 @@
+{
+  "name": "@emdash-cms/gutenberg-to-portable-text",
+  "version": "0.9.0",
+  "description": "Convert WordPress Gutenberg blocks to Portable Text",
+  "type": "module",
+  "main": "dist/index.mjs",
+  "types": "dist/index.d.mts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.mts",
+      "default": "./dist/index.mjs"
+    }
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "tsdown src/index.ts --format esm --dts --clean",
+    "dev": "tsdown src/index.ts --format esm --dts --watch",
+    "test": "vitest",
+    "prepublishOnly": "node --run build",
+    "check": "publint && attw --pack --ignore-rules=cjs-resolves-to-esm",
+    "typecheck": "tsgo --noEmit"
+  },
+  "dependencies": {
+    "@wordpress/block-serialization-default-parser": "^5.13.0",
+    "parse5": "^7.2.1"
+  },
+  "devDependencies": {
+    "@arethetypeswrong/cli": "catalog:",
+    "publint": "catalog:",
+    "tsdown": "catalog:",
+    "typescript": "catalog:",
+    "vitest": "catalog:"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/emdash-cms/emdash.git",
+    "directory": "packages/gutenberg-to-portable-text"
+  },
+  "homepage": "https://github.com/emdash-cms/emdash",
+  "keywords": [
+    "wordpress",
+    "gutenberg",
+    "portable-text",
+    "migration",
+    "blocks"
+  ],
+  "author": "Matt Kane",
+  "license": "MIT",
+  "peerDependencies": {},
+  "optionalDependencies": {}
+}