highlightjs: Use new highlightAll() function
CONSOLE LOG Deprecated as of 10.6.0. initHighlightingOnLoad() is deprecated. Use highlightAll() instead.
Fixes: #1501 (closed)
CONSOLE LOG Deprecated as of 10.6.0. initHighlightingOnLoad() is deprecated. Use highlightAll() instead.
Fixes: #1501 (closed)