Editora 0.10.0. Archived, so links from that release keep working. Read the 0.17.0 page →
LSP: Go to Declaration
lsp.gotoDeclaration Jump to the declaration of the symbol at the caret.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for LSP: Go to Declaration, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.