[FEAT]: Detailed configurations on layouts

[FlyinCow]

Is your feature request related to a problem? Please describe. I use VerticalStack layout for my main workspace, with IDE/Obsidian in the primary container and browser/terminal/chat apps stacking aside. But I have to resize the width of primary container every time because when you open a second app it always takes 50% the width of the screen.

Describe the solution you'd like Rules in komorebi.json for built-in layouts. For workspace-wise:

{
...
  "layout": "VerticalStack",
  "primary_container_width": "1600" // or percentage, e.g. primary_container_width: "65%"
...
}

Or for layout-wise:

{
  "layout_configuration":{
    "VerticalStack": {
      "primary_container_percentage": 65,
      // other configurations
    },
    "BSP": {
      “split_priority”: "vertical" // force to split the container vertically first, "auto" for split at the longer edge
    }
  }
}