feat: add admin-exclusive share-management page (#461)

* testing with all_shares

* share table

* share table

* change icon on admin page

* add share size to list

---------

Co-authored-by: Elias Schneider <login@eliasschneider.com>

backend/src/share/dto/adminShare.dto.ts

@@ -0,0 +1,27 @@
+import { OmitType } from "@nestjs/swagger";
+import { Expose, plainToClass } from "class-transformer";
+import { ShareDTO } from "./share.dto";
+
+export class AdminShareDTO extends OmitType(ShareDTO, [
+  "files",
+  "from",
+  "fromList",
+] as const) {
+  @Expose()
+  views: number;
+
+  @Expose()
+  createdAt: Date;
+
+  from(partial: Partial<AdminShareDTO>) {
+    return plainToClass(AdminShareDTO, partial, {
+      excludeExtraneousValues: true,
+    });
+  }
+
+  fromList(partial: Partial<AdminShareDTO>[]) {
+    return partial.map((part) =>
+      plainToClass(AdminShareDTO, part, { excludeExtraneousValues: true }),
+    );
+  }
+}