Challenge #18: 🎄 Lights in line with diagonals

The Christmas lights panel 🎄✨ in the workshop has been a total success. But the elves want to go one step further: now they want to detect whether there is a line of 4 lights of the same color also on a diagonal.

The panel is still a matrix where each cell can be:

• '.' → light off
• 'R' → red light
• 'G' → green light

Now your function must return true if there is a line of 4 lights of the same color that are on and aligned, whether horizontally ↔, vertically ↕ or diagonally ↘↙.

hasFourInARow([
  ['R', '.', '.', '.'],
  ['.', 'R', '.', '.'],
  ['.', '.', 'R', '.'],
  ['.', '.', '.', 'R']
])
// true → there are 4 red lights in a ↘ diagonal

hasFourInARow([
  ['.', '.', '.', 'G'],
  ['.', '.', 'G', '.'],
  ['.', 'G', '.', '.'],
  ['G', '.', '.', '.']
])
// true → there are 4 green lights in a ↙ diagonal

hasFourInARow([
  ['R', 'R', 'R', 'R'],
  ['G', 'G', '.', '.'],
  ['.', '.', '.', '.'],
  ['.', '.', '.', '.']
])
// true → there are 4 red lights in a horizontal line

hasFourInARow([
  ['R', 'G', 'R'],
  ['G', 'R', 'G'],
  ['G', 'R', 'G']
])
// false → there are no 4 consecutive lights of the same color

Note: The board can be any size.