fix(html): avoid wrapping keywords in the middle of a word

[kad-korpem]

Description

When a long list of keywords was supplied, the word-wrap caused breaking of keywords in arbitrary places, often in the middle of words. This is fixed by using Bootstrap's .text-break class.

Type of change

(Remove irrelevant options)

• Bugfix

Checklist:

• I've double-checked the code in this PR myself
• I've left the code better than before (boy scout rule)
• The code is readable, comments are added that explain hard or non-obvious parts.
• I've expanded/improved the (unit) tests, when applicable
• I've run (unit) tests that prove my solution works
• There's no sensitive information like credentials in my PR