[BUG] DataSource info is missing in default query when click Discover from other pages

[gaobinlong]

Describe the bug

When we click Discover sidebar from other pages, we fetch the default dataset to enrich the default query, but we don't fetch the data source info and enrich the default dataset, resulting in some unexpected behavior such as:

1. The selected dataset doesn't show the dataSource prefix
2. Some query enhancement like query_assistant_ppl doesn't show the banner because we cannot check feature flag in the correct data source.

To Reproduce
Steps to reproduce the behavior:

1. Go to some other pages except the Discover.
2. Click on 'Discover' link the sidebar
3. We can see that the selected dataset doesn't show the datasource prefix.
4. We can also check the url, dataSource field doesn't exist in the dataset field, but if we reselect that dataset, then everything is fine.

Expected behavior
As described above.

OpenSearch Version
3.0.0

Dashboards Version
3.0.0

Plugins

Anomaly detection
Observability
Workspace

Screenshots
URL: https://future.playground.opensearch.org/w/c0kZbl/app/data-explorer/discover#?_a=(discover:(columns:!(_source),isDirty:!f,sort:!()),metadata:(view:discover))&_q=(filters:!(),query:(dataset:(id:c0kZbl_c50be440-86dd-11ef-8943-bda9cabad8b1_90943e30-9a47-11e8-b64d-95841ca0b247,timeFieldName:timestamp,title:opensearch_dashboards_sample_data_logs,type:INDEX_PATTERN),language:PPL,query:'source%20%3D%20opensearch_dashboards_sample_data_logs'))&_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-15m,to:now))

URL: https://future.playground.opensearch.org/w/c0kZbl/app/data-explorer/discover#?_a=(discover:(columns:!(_source),isDirty:!f,sort:!()),metadata:(view:discover))&_q=(filters:!(),query:(dataset:(dataSource:(id:c50be440-86dd-11ef-8943-bda9cabad8b1,title:'Olly@2.17.1',type:OpenSearch),id:c0kZbl_c50be440-86dd-11ef-8943-bda9cabad8b1_90943e30-9a47-11e8-b64d-95841ca0b247,timeFieldName:timestamp,title:opensearch_dashboards_sample_data_logs,type:INDEX_PATTERN),language:PPL,query:'source%20%3D%20opensearch_dashboards_sample_data_logs'))&_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-15m,to:now))

Host/Environment (please complete the following information):

• OS: [MacOS]
• Browser and version [e.g. 22]

Additional context

bugfix.mov