feat: 132 queuing transfers (#332)

the logic of selecting files has been extended!
From now on selecting file will put the files into a transfer queue, which is shown on the bottom panel.
When a file is selected the file is added to the queue with a destination path, which is the **current other explorer path at the moment of selection.
It is possible to navigate to the transfer queue by using `P` and pressing `ENTER` on a file will remove it from the transfer queue.Other commands will work as well on the transfer queue, like `COPY`, `MOVE`, `DELETE`, `RENAME`.

closes #132

src/ui/activities/filetransfer/actions/delete.rs

@@ -16,10 +16,14 @@ impl FileTransferActivity {
             }
             SelectedFile::Many(entries) => {
                 // Iter files
-                for entry in entries.iter() {
+                for (entry, _) in entries.iter() {
                     // Delete file
                     self.local_remove_file(entry);
                 }
+
+                // clear selection
+                self.host_bridge_mut().clear_queue();
+                self.reload_host_bridge_filelist();
             }
             SelectedFile::None => {}
         }
@@ -33,10 +37,14 @@ impl FileTransferActivity {
             }
             SelectedFile::Many(entries) => {
                 // Iter files
-                for entry in entries.iter() {
+                for (entry, _) in entries.iter() {
                     // Delete file
                     self.remote_remove_file(entry);
                 }
+
+                // clear selection
+                self.remote_mut().clear_queue();
+                self.reload_remote_filelist();
             }
             SelectedFile::None => {}
         }