jump to the start/end of the selection

[jlaurens]

Is your feature request related to a problem? Please describe.
When we have a big {...} group, if we see onscreen only one of the braces, it is not easy to jump to the other one.

Describe the solution you'd like
We already have the possibility to select the whole block by double clicking one of the braces,
jumping to the top or the bottom of the selection should be rather easy from what is already implemented.

Describe alternatives you've considered
A "jump to the balancing delimiter" would be acceptable, but a bit limited.