Support links with multiple ranges

[Tyriar]

OSC 8 hyperlink support does not currently support links that share their id/uri to change hover feedback: #4005

There is also the more complicated case of using no id and moving the cursor:

For hyperlink cells that do not have an id (or have an empty id, these two are interchangeable), the terminal emulator does some heuristics in figuring out which cells belong together. Here VTE and iTerm2 differ, but from a practical point of view, this difference should not matter. (VTE automatically assigns a new unique id whenever it encounters an OSC 8 with a URI but without id. That is, it automatically connects cells that were printed in a single OSC 8 run, in case there was no explicit id. iTerm2 looks at the onscreen contents and connects those cells that are next to each other, lack the id, but point to the same URI.)

https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda