wip: allow ordinary menus

[jwhitaker-gridcog]

Heya, thanks for maintaining this.

When playing with Strackeror's great Helix mode contribution, I was having trouble getting a command-hx menu to feel right due to the single hot key system. E.g. distilled to a three item menu, "fmt / Format", "w / Write", and "wbc / Write and Close", w and wbc can't be distinguished in the current system.

As a proof of concept, I wondered if menus could have a menu_type: "hotkey" (current behaviour, and default) or alternatively a menu_type: "palette", which is just a stock-standard vscode quickpick. Palette menus don't have the hotkey system but can just use vscode's already great type/select system which I've been using locally quite happily.

Demo:

Kooha-2024-12-18-08-42-33.webm.mp4

From menus config:

    "dance.menus": {
        "leader-hx": {
            "title": "Space",
            "items": {
                "f": {
                    "text": "Open file picker",
                    "command": "workbench.action.quickOpen"
                }
            }
        },
        "command-hx": {
            "title": "Helix command mode",
            "menu_type": "palette",
            "items": {
                "fmt": {
                    "text": "format",
                    "command": "editor.action.formatDocument"
                },
                "w": {
                    "text": "write",
                    "command": "workbench.action.files.save"
                },
                // "wbc": {
                //     "text": "write-buffer-close",
                //     "command": "dance.run",
                //     "args": [
                //         {
                //             "commands": [
                //                 "workbench.action.files.save",
                //                 "workbench.action.closeeditor"
                //             ]
                //         }
                //     ]
                // }
            }
        }
    },

This probably isn't wired up the best way, but was hoping to get some feedback on if this would be accepted in principal or not before fiddling further.

Thanks!