Allow empty strings combinations

[netux]

• '' transpiles to String("", Null, Null, Null)
• ' ' transpiles to String("{0} {1}", String("", Null, Null, Null), String("", Null, Null), Null)
  • works recursively for strings with more than one space

This allows for strings like:

• " Hello", " Hello" (multiple spaces, even if GitHub doesn't show it), "Hello ", " Hello "
• "Hello::Goodbye" (empty string in between both colons)
• "" (literal empty string)

I tested this with the following code:

const ss = [
    `Hello`,
    `Hello `,
    ` Hello`,
    ` Hello `,
    `Hello {}`(0),
    `Hello / {} - Goodbye`(0),
    ``,
    ` `,
    `  `,
    `   `,
    ` {} `(0),
    `Hello:Goodbye`,
    `Hello::Goodbye`,
    `Hello:::Goodbye`,
    `Hello   / `,
    `#     `,
    `Round      `,
    `-> `,
    `¡ !`
]

Rule "Empty strings"
    Event
        Ongoing - Global
    Actions
        for s in ss:
            Create HUD Text(Everyone, s, null, null, Left, 1, White, White, White, Visible To And String)

which in game looked like this:

If anyone finds a strings that don't parse correctly, let me know.