VVO: Loading earlier/later trips very buggy

[ialokim]

Describe the bug

To Reproduce
Steps to reproduce the behavior:

1. Select VVO as network
2. Search for any connection
3. Swipe up/down to load earlier/later trips
4. Notice that the same connections are shown twice and erlier/later trips are not shown adjacent to the ones loaded before, but with a big time difference.

Expected behavior
No connection should be shown twice. Earlier/later trips should be just before/after the currently shown ones.

Screenshots

Versions (please complete the following information):

• Transportr Version: 2.2.0 (preview)
• Device: Google Pixel 4a
• Android Version: 13

[ialokim]

This might or might not be related to #824

[ialokim]

With the fix for #824 in #964, the issue is unfortunately still present. In difference to #824 which applied to all networks, this one might be related to VVO being one of the few Efa-based providers.