Add gooseberry edit to edit annotation text

[Ninjani]

Add a new command gooseberry edit that lets you edit and upload the annotation content. Include this as a keyboard shortcut in gooseberry search.

Think about how this could be done in bulk - a text file with each annotation in a separate section (with a fixed format, so it's parse-able) opened in the default editor? Would be nice to use a different editor for this (e.g whatever is being used for viewing the knowledge base - Typora, Obsidian, Emacs etc.) but that would need two commands - one for preparing a file to edit and one for uploading edits.