Hyphenate word when splitting a word over multiple lines

### Steps to reproduce

1. Have a 960 px wide screen, happen to have the right panel open, see:

(Note the large amount of space between the text and icon on the right)

### What happened?

The word which is split over two lines is not hyphenated

### What did you expect?

When words are split, they should be hyphenated

### Operating system

Arch Linux

### Browser information

Chromium Version 92.0.4515.131 (Official Build)

### URL for webapp

develop.element.io

### Have you submitted a rageshake?

No

Reproduce the issue at develop.element.io in Chromium with a 960 px-wide screen and the right panel open. Trace the web app's text-wrapping and layout styling to find where the split word is rendered. Done means words broken across lines are hyphenated without leaving the reported excess space beside the right-side icon.

Written by the indexing model from the issue text.