Prevent importing duplicate saved searches

app/src/main/java/eu/faircode/email/ActivitySetup.java

@@ -1118,10 +1118,20 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
                         for (int s = 0; s < jsearches.length(); s++) {
                             JSONObject jsearch = (JSONObject) jsearches.get(s);
                             EntitySearch search = EntitySearch.fromJSON(jsearch);
+
+                            boolean found = false;
+                            for (EntitySearch other : db.search().getSearches())
+                                if (other.equals(search)) {
+                                    found = true;
+                                    break;
+                                }
+
+                            if (!found) {
                                 search.id = null;
                                 db.search().insertSearch(search);
                             }
                         }
+                    }
 
                     if (import_accounts) {
                         EntityAccount primary = db.account().getPrimaryAccount();

app/src/main/java/eu/faircode/email/EntitySearch.java

@@ -82,7 +82,8 @@ public class EntitySearch {
     public boolean equals(Object obj) {
         if (obj instanceof EntitySearch) {
             EntitySearch other = (EntitySearch) obj;
-            return (this.id.equals(other.id) &&
+            return (Objects.equals(this.account_uuid, other.account_uuid) &&
+                    Objects.equals(this.folder_name, other.folder_name) &&
                     this.name.equals(other.name) &&
                     Objects.equals(this.order, other.order) &&
                     Objects.equals(this.color, other.color) &&