chore(server): save original file name with extension (#7679)

* chore(server): save original file name with extension

* extract extension

* update e2e test

* update e2e test

* download archive

* fix download archive appending name

* pr feedback

* remove unused code

* test

* unit test

* remove unused code

* migration

* noops

* pr feedback

* Update server/src/domain/download/download.service.ts

Co-authored-by: Mert <101130780+mertalev@users.noreply.github.com>

---------

Co-authored-by: Mert <101130780+mertalev@users.noreply.github.com>

e2e/package-lock.json

@@ -49,7 +49,6 @@
       },
       "devDependencies": {
         "@immich/sdk": "file:../open-api/typescript-sdk",
-        "@testcontainers/postgresql": "^10.7.1",
         "@types/byte-size": "^8.1.0",
         "@types/cli-progress": "^3.11.0",
         "@types/lodash-es": "^4.17.12",