BUG: Sensitive info disclosed on user's browser in localstorage #1495

Describe the bug
After a successful login to a dbGate instance, all the details of the connection, including secrets, are easily shown in localstorage; the "currentDatabase" key contains a JSON string containing hostname, port, username, password...

Such info should NOT reach the client; I believe it's not even needed since the connections are managed server side.

This makes dbGate insecure for use by non-admins and represents a serious security issue.

To Reproduce
Steps to reproduce the behavior:

1. Log in into any dbGate instance
2. browsers:
   a. Firefox: press F12 and select "Storage"; on left column select "Local Storage" and select the storage corresponding to the dbGate instance
   b. Chromium/Chrome: press F12 and select "Application"; select Storage/Local Storage and select the storage corresponding to the dbGate instance
3. see the "currentDatabase" value

Expected behavior
No sensitive information reaches the client

Screenshots
N/A

Version Information (please complete the following information):

• OS: any
• App Version latest (v7.2.1)
• Install source Docker
• Type - Web
• Database engine: any