feat: Add the basic implementation of notification module (#7282)

* feat: Add the basic implementation of notification module

* fix: Minor fixes and introduction of idempotency key

* fix: Changes based on PR review

yarn.lock

@@ -5473,6 +5473,31 @@ __metadata:
   languageName: unknown
   linkType: soft
 
+"@medusajs/notification@workspace:packages/modules/notification":
+  version: 0.0.0-use.local
+  resolution: "@medusajs/notification@workspace:packages/modules/notification"
+  dependencies:
+    "@medusajs/modules-sdk": ^1.12.11
+    "@medusajs/types": ^1.11.16
+    "@medusajs/utils": ^1.11.9
+    "@mikro-orm/cli": 5.9.7
+    "@mikro-orm/core": 5.9.7
+    "@mikro-orm/migrations": 5.9.7
+    "@mikro-orm/postgresql": 5.9.7
+    awilix: ^8.0.0
+    cross-env: ^5.2.1
+    dotenv: ^16.4.5
+    jest: ^29.6.3
+    knex: 2.4.2
+    medusa-test-utils: ^1.1.44
+    rimraf: ^3.0.2
+    ts-jest: ^29.1.1
+    ts-node: ^10.9.1
+    tsc-alias: ^1.8.6
+    typescript: ^5.1.6
+  languageName: unknown
+  linkType: soft
+
 "@medusajs/oas-github-ci@workspace:packages/cli/oas/oas-github-ci":
   version: 0.0.0-use.local
   resolution: "@medusajs/oas-github-ci@workspace:packages/cli/oas/oas-github-ci"