Editora 0.18.3. Archived, so links from that release keep working. Read the 0.18.5 page →
Edit: Select to Bracket
edit.selectToBracket Select from the bracket next to the caret to its match, including both brackets.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Edit: Select to Bracket, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.