Add neon_blurange theme

[adiati98]

Describe your theme in detail

• This theme combines dark-ish blue, orange, green, and very light blue-ish colors that give a neon feel.
• All color combinations pass the level AA requirements of WCAG 2.

Include a screenshot / image
The screenshot is taken in dark mode to show the whiteish border color.

Color palette

[
    "background" => "#030D6B",
    "border" => "#C7CCFF",
    "stroke" => "#C7CCFF",
    "ring" => "#FB750B",
    "fire" => "#FB750B",
    "currStreakNum" => "#25FB88",
    "sideNums" => "#FB750B",
    "currStreakLabel" => "#25FB88",
    "sideLabels" => "#25FB88",
    "dates" => "#C7CCFF",
]

Are you going to add the theme?

• Check for yes