v0.26.2 Resize cells from imported excel table (width)

[pwilken]

Describe the bug
It's not possible to resize cells in an imported excel table.

Steps To Reproduce
Steps to reproduce the behavior:

1. Import an excel table
2. Catch a cell wall (left or right) and resize it
3. See that it hasn't resized in width

Screenshots
GIF

Your Configuration (please complete the following information):

• Exact BookStack Version (Found in settings): 0.26.2
• PHP Version: PHP 7.1.30 (cli)
• Hosting Method (Nginx/Apache/Docker): Docker
• OS: macOS 10.14.5
• Browser: Chrome Version 74.0.3729.169 (Official Build) (64-bit)