Prioritize inbox operations

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

@@ -2114,7 +2114,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                                         List<TupleOperationEx.PartitionKey> keys = new ArrayList<>();
                                         synchronized (partitions) {
                                             for (TupleOperationEx op : added.get(folder.id)) {
-                                                TupleOperationEx.PartitionKey key = op.getPartitionKey(offline);
+                                                TupleOperationEx.PartitionKey key = op.getPartitionKey(offline, folder.type);
 
                                                 if (!partitions.containsKey(key)) {
                                                     partitions.put(key, new ArrayList<>());

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

@@ -45,7 +45,7 @@ public class TupleOperationEx extends EntityOperation {
             return false;
     }
 
-    PartitionKey getPartitionKey(boolean offline) {
+    PartitionKey getPartitionKey(boolean offline, String folderType) {
         PartitionKey key = new PartitionKey();
 
         key.folder = this.folder;
@@ -53,11 +53,13 @@ public class TupleOperationEx extends EntityOperation {
 
         if (offline) {
             // open/close folder is expensive
-            key.priority = this.priority + 10;
+            key.priority = this.priority + 20;
             return key;
         }
 
         key.priority = this.priority;
+        if (!EntityFolder.INBOX.equals(folderType))
+            key.priority += 10;
 
         if (ADD.equals(name) ||
                 DELETE.equals(name))