Autocomplete keybinding settings in UI writes wrong configuration to settings.json, especially when setting multiple bindings for same action

[matthewgapp]

Sanity checks

• [X] I have searched github.com/withfig/fig/issues and there are no duplicates of my issue
• [X] I have run fig doctor in the affected terminal session
• [X] I have run fig restart and tested again (tell us if that fixed it)

Issue Details

I wasn't able to configure Fig so that enter and tab would select the current auto-complete item. The UI writes black magic into the settings.json which is found in ~/.fig

Instead, I deleted all the configuration stuff that the UI inserted and created entries for tab and enter.

Environment

fig-details:
  - desktop-version: Version 1.0.61 (B528) [U.S.]
hardware-info:
  - model: MacBook Pro
  - model-id: MacBookPro18,4
  - chip-id: Apple M1 Max
  - cores: 10 (8 performance and 2 efficiency)
  - mem: 32 GB
os-info:
  - macOS 12.5.1 (21G83)
environment:
  - shell: /bin/zsh
  - terminal: vscode
  - cwd: /Users/matthewgapp
  - exe-path: /opt/homebrew/bin/fig
  - install-method: brew
  - env-vars:
    - FIG_INTEGRATION_VERSION: 8
    - FIG_PID: 4149
    - FIG_TERM: 1
    - FIG_TERM_VERSION: 5.2.0
    - PATH: /Users/matthewgapp/Library/Caches/fnm_multishells/4209_1664477720234/bin:/Users/matthewgapp/go/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Users/matthewgapp/Library/Caches/fnm_multishells/2594_1664476935696/bin:/Users/matthewgapp/go/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/Users/matthewgapp/.cargo/bin:/Users/matthewgapp/.fig/bin:/Users/matthewgapp/.local/bin:/Users/matthewgapp/.pub-cache/bin:/opt/homebrew/opt/fzf/bin:/Users/matthewgapp/.pub-cache/bin
    - SHELL: /bin/zsh
    - TERM: xterm-256color
    - TERM_SESSION_ID: 8a7d4caa-b969-4091-9595-81c465a405b2
- integrations:
  - SSH: false
  - TMUX: false
  - iTerm: installed!
  - Hyper: application is not present.
  - Visual Studio Code: installed!
  - Docker: false