Editora 0.11.0. Archived, so links from that release keep working. Read the 0.18.5 page →
LSP: Go to Implementation
lsp.gotoImplementation Jump to the concrete implementations 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 Implementation, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.