fix(sanity): fix issues with tests failing without build

packages/sanity/vitest.config.mts

@@ -1,3 +1,5 @@
+import path from 'node:path'
+
 import {defineConfig} from '@repo/test-config/vitest'
 import react from '@vitejs/plugin-react'
 
@@ -10,6 +12,14 @@ export default defineConfig({
       './playwright-ct',
       './src/_internal/cli', // the CLI has its own jest config
     ],
+    /**
+     * Portabletext package depends on monorepo packages that are not necessarily the same version
+     * as the latest sanity packages. pnpm dedupes this packages so the aliases do not work in this case.
+     * This alias points to the source of the pte package so the aliases work.
+     */
+    alias: {
+      '@portabletext/editor': path.join(__dirname, './node_modules/@portabletext/editor/src'),
+    },
   },
   plugins: [react()],
 })