When the data takes longer to load, the UI is blocked with the loading
overlay.
Now the data is loaded in the background and we can still navigate
in the spreadsheet.
Note: I moved the `.silent` upper in the call chain. Lower level structures
such as ServerData, DataSources, MetadataRepository don't need to know.
closesodoo/odoo#110387
X-original-commit: 8b09c7347ebeffa7059ed0ccc63f73e3559b7712
Signed-off-by: Pierre Rousseau (pro) <pro@odoo.com>
Signed-off-by: Lucas Lefèvre (lul) <lul@odoo.com>