Connection modal title always shows New connection even when a saved connection is loaded

## Problem
The connection modal title always reads "New connection" even when a saved connection is pre-loaded with all fields pre-filled.

This is misleading. If the user has a saved connection named "Local MySQL" pre-filled, the modal should indicate they are reconnecting with that saved connection, not creating a new one.

## Steps to reproduce
1. Save a connection named e.g. "Local MySQL"
2. Refresh the page or disconnect
3. The modal appears with all fields pre-filled from the saved connection
4. The title still reads "New connection"

## Expected behaviour
- When a saved connection is loaded, the title should reflect the connection name or simply say "Connect" rather than "New connection"
- "New connection" should only appear when the form is truly blank

## Impact
Causes confusion about whether changes will create a new connection entry or overwrite the existing saved one.