Add file loader

[antoniovizuete]

As a user, I need to upload data to the clickhouse server.

• The application must have a button to trigger the action. It must be available on the button bar.

• When the button is clicked, a modal must be shown, asking for the file to load:

  • There will be an area to receive the file by dropping into it.
  • There will be a button to open the native file explorer dialog.

• Once the file has been selected, the modal must ask for the loading settings:

  • There will be an input to enter the table where the date will be loaded.
  • There will be a dropdown to select the actual format of the loaded file (it could be guessed based on the file extension).
  • There will be a button to continue the process ("Upload").
  • There will be a button to dismiss the process ("Cancel").
  • Once the "Upload" button has been clicked, the HTTP request for ingesting the data will be launched. The modal will wait for the server's response.

• The modal will be dismissable when on the first two steps

• The modal WON'T be dismissable. when the request has been launched.

[cmarindev]

Tasks

• [ ] Add button to display the Load File Dialog
• [ ] Add dropzone to Dialog
• [ ] Add button to open native file explorer