Dragging to change column width will also affect the scroll bar

[bb33bb]

Describe the bug
when want to change the width of column, we drag it to .
but if the mouse go out side the window, the scroll bar will also change the view of window.
To Reproduce
Steps to reproduce the behavior:

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• OS
  - manjaro
• Version
  • 0.3.alpha0
• Output of localectl status
  System Locale: LANG=en_SG.UTF-8
  VC Keymap: us
  X11 Layout: us
  Additional context