fix(web): download archives via html POST forms (#30021)

* fix: download archives via html POST forms

* refactor: fix css of download panel, add translations and toasts

* style: run lint, formatter, check

* chore: generate open-api specs

* refactor(web): simplify download manager, use SvelteMap

* refactor(server): parse fields from x-www-form-urlencoded request

* refactor: move content-disposition to ImmichReadStream

* Pass asset ids as a comma-separated string

This fixes a bug where the 1000 parameter limit is being hit when
downloading 1000+ assets.

* Add download controller test

* Fix lint warnings

packages/sdk/src/fetch-client.ts

@@ -1602,6 +1602,8 @@ export type UserConfigDto = {
     user: UserConfigUserDto;
 };
 export type DownloadArchiveDto = {
+    /** The name of the archive to download, without extension */
+    archiveName?: string;
     /** Asset IDs */
     assetIds: string[];
     /** Download edited asset if available */