[FEATURE]: User settings are cleared when updating to new versions of the Content Caddy extension.

[ttebify]

Is your feature request related to a problem? Please describe.

Currently, when a new version of the Content Caddy extension is released and users update to it, their settings from the previous version are cleared. This can be frustrating for users who have spent time customising their settings to their preferences. We need to ensure that when new versions of the extension are released, user settings are preserved and not cleared.

Describe the solution you'd like
When a new version of the Content Caddy extension is released, the update process should detect if the user has any existing settings and preserve them. The new version should add any new features and functionality without overriding the existing settings. This will ensure a smoother user experience and avoid frustration caused by lost settings.