${userHome} variable not working in connections->database string.

[wdawson]

When the ${userHome} variable is used to specify a database, it is interpreted as a literal string instead.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'settings.json`
2. Create a connection like:

{
  "sqltools.connections": [
    {
      "driver": "SQLite",
      "name": "my-database",
      "database": "${userHome}/my-database.sqlite3"
    }
  ]
}

3. Open the connection in the SQLTools tab under "Connections"
4. See directory created under the workspace home, called "${userHome}" instead of evaluating the VS Code variable.

Expected behavior
The ${userHome} variable should be evaluated rather than treated as a string literal.

Screenshots
N/A

Desktop (please complete the following information):

• SQLTools Version v0.28.3
• VS Code Version: 1.93.1
• OS: Mac
• Driver:
  • PostgreSQL/Redshift
  • MySQL/MariaDB
  • MSSQL/Azure
  • SQLite
  • Other? Which...
• Database version: [e.g. MySQL v5.6, PostgreSQL vX...]

Additional context
The ${workspaceFolder:Foobar} variable seems to work correctly.