fix: correct "Remove from *arr" button (#1544)

This PR fixes the "Delete from *arr" button in the request list. It checks from the API whether the
*arr server corresponding to the request still exists before displaying the remove button, and fixes
a cache removal issue that could cause problems when deleting recently added media. This PR also
reverts #1476, which introduced problems during removal.

fix #1494

server/api/servarr/radarr.ts

@@ -274,10 +274,13 @@ class RadarrAPI extends ServarrBase<{ movieId: number }> {
     if (tmdbId) {
       this.removeCache('/movie/lookup', {
         term: `tmdb:${tmdbId}`,
+        headers: this.defaultHeaders,
       });
     }
     if (externalId) {
-      this.removeCache(`/movie/${externalId}`);
+      this.removeCache(`/movie/${externalId}`, {
+        headers: this.defaultHeaders,
+      });
     }
   };
 }