feat: disable other settings tabs when image handling is disabled & improve UI

[abaicus]

All Submissions:

• Have you followed the Optimole Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

• Disables other settings tabs when image handling is turned off;
• Cards on the main dashboard page should link to the general tab if image handling is turned off;
• Makes the statuses of the Optimization Status card update live based on current settings (no need to save now);
• Fixes consistency in styling and layout for the sidebar cards;
• Makes the connection details card more compact;

Closes Codeinwp/optimole-service#1386.

How to test the changes in this Pull Request:

1. Disable image handling in the general tab, this will also disable other tabs than General;
2. Cards on the main dashboard page pointing to Enable Offload Images& Advanced Settings should just switch to General tab;
3. The Optimization Status card should react to setting changes instantly;

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

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