To refresh the IntelliSense cache in ADS, press SHIFT+CTRL+P
, begin typing "IntelliSense", and click "Refresh IntelliSense Cache" when it appears in the list.
To make quick work of this forward, you can assign a keybinding by clicking the gear icon to the right of the "Refresh IntelliSense Cache" entry and entering a key stroke combination.
Separately, your screen image shows the newly imported tables were created in the master system database. I suggest you create a user database for this purpose as that will isolate the tables from system objects and facilitate promoting your database schema later. Run the T-SQL command below in a query window to create a new user database with name of your choosing and create/import your tables into that database.
CREATE DATABASE YourDatabaseName;