Text selection color & opacity fix

[Suhaybu]

Problems tackled in this PR

The first issue:

Currently, when selecting code, the color is a blueish color as mentioned in this issue https://github.com/MordFustang21/zed-one-dark-pro/issues/19#issue-2459094338

The second issue:

When selecting text in documentation, the text becomes unreadable.

Proposed Solution

By specifying selection color under players, it seems to fix the issue. With my observation, the value selection takes is #<hex_value><opacity> where opacity is the %. So with the color #3e4552 and opacity of 70%, the value expected is: #3e455270

"experimental.theme_overrides": {
  "players": [
     {
      "selection": "#3e455270"
    }
  ]
}

Result of this PR

Resolved first issue:

Resolved second issue:

[MordFustang21]

This looks great thanks for fixing that.