[Draft] Support figma command pallete

[softmarshmallow]

Ideas:

• load icons without launching plugin ui with command - e.g. icons/add
• open in browser with converted code - e.g. open in grida

References

• https://help.figma.com/hc/en-us/articles/360040328653-Use-shortcuts-and-quick-actions
• https://www.figma.com/plugin-docs/api/figma/#command
• https://www.figma.com/plugin-docs/api/properties/nodes-setrelaunchdata/#command
• Example of icon loading with command