Go to Heading Quick Menu via hotkey support

Ability to Navigate Heading and Go to Heading Line via hotkey based quick menu.

Headings have a hierarchy which is visually collapsible and now quickly scannable via Outline. The Outline supports the ability to manually click a headlining line item and go to that line.

It would be helpful to be able to do this via a quick-select menu similar to Go to Symbol/Function in popular IDEs.

Example quickly navigating file outline hierarchy via keyboard: