Refactor email handling for improved type safety and extensibility

- Replace `BaseEmailData` with `Email` type for stricter type validation
- Update `sendEmail` API to support new typed structure and template integration
- Migrate to `@xtr-dev/payload-mailing` for enhanced email sending capabilities
- Remove unnecessary null checks and redundant code in email scheduling logic
- Regenerate PayloadCMS types for aligning with revised schema changes
- Update dev scripts and imports for seamless compatibility with the new email module

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/payload-mailing",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "description": "Template-based email system with scheduling and job processing for PayloadCMS",
   "type": "module",
   "main": "dist/index.js",
@@ -23,8 +23,9 @@
     "dev:generate-importmap": "npm run dev:payload generate:importmap",
     "dev:generate-types": "npm run dev:payload generate:types",
     "dev:payload": "cross-env PAYLOAD_CONFIG_PATH=./dev/payload.config.ts payload",
-    "generate:importmap": "npm run dev:generate-importmap",
-    "generate:types": "npm run dev:generate-types",
+    "payload": "cross-env NODE_OPTIONS=--no-deprecation payload",
+    "generate:importmap": "npm run payload generate:importmap",
+    "generate:types": "npm run payload generate:types",
     "lint": "eslint",
     "lint:fix": "eslint ./src --fix",
     "prepublishOnly": "npm run clean && npm run build",