message: Add altKeymap shortcut
diff: ],
  "keybindings": [
  {
  - "key": "ctrl+alt+m",
  - "mac": "cmd+alt+m",
  - "command": "latex-workshop.toggleMathPreviewPanel"
  + "key": "ctrl+l alt+m",
  + "mac": "cmd+l alt+m",
  + "command": "latex-workshop.toggleMathPreviewPanel",
  + "when": "editorLangId =~ /latex|rsweave|jlweave/ && config.latex-workshop.bind.altKeymap.enabled"
  },
  {
  "key": "ctrl+l alt+b",
  "command": "workbench.view.extension.latex",
  "when": "config.latex-workshop.bind.altKeymap.enabled"
  },
  + {
  + "key": "ctrl+alt+m",
  + "mac": "cmd+alt+m",
  + "command": "latex-workshop.toggleMathPreviewPanel",
  + "when": "editorLangId =~ /latex|rsweave|jlweave/ && !config.latex-workshop.bind.altKeymap.enabled"
  + },
  {
  "key": "ctrl+alt+b",
  "mac": "cmd+alt+b",
  