Log List Search: Next iteration

- [ ] I would like to see differentiation from selected line filter highlights. <img width="1680" height="555" alt="Image" src="https://github.com/user-attachments/assets/25626ebc-9cce-4a56-9082-e4726ba22467" /> - [ ] And it would be really nice to see which result I am currently showing in the filters. <img width="778" height="587" alt="Image" src="https://github.com/user-attachments/assets/089a8fff-784b-4daf-ad6c-35316f79e45d" /> - [ ] Kinda related the color the browser users for currently selected search result is very similar to what we're using for line filter/ text result. <img width="2056" height="966" alt="Image" src="https://github.com/user-attachments/assets/f795afa6-4606-4d3e-ad5b-bf45490ae8ee" /> - The return key should move to the next result. <img width="525" height="121" alt="Image" src="https://github.com/user-attachments/assets/11cd4943-1340-43d3-a496-60eac304101c" /> - [ ] Multiple searches https://github.com/grafana/grafana/issues/115216 - [ ] When we get around to [multiple](https://github.com/grafana/grafana/issues/115216), we should be able to page through line filter highlight results from the active query exactly the same as any other text search result. _Originally posted by @gtk-grafana in https://github.com/grafana/grafana/pull/114653#pullrequestreview-3585363096_