Function indent

wasm/notebook/src/editor.js:40–43

(state, textAfter, line)

            return mode.token(stream, modeState);
        },
        indent(state, textAfter, line) {
            const { mode, modeState } = state;
            if (mode.indent) return mode.indent(modeState, textAfter, line);
        },
        innerMode(state) {
            const { mode, modeState } = state;
            return { mode, state: modeState };