Fix Cordova indents with new clean html option

[thewheat]

Fixes #1004

• Did this by adding a new option in CleanHtmlFilter and setting it in the Cordova scraper
• The indents are removed as they are a non breaking space character that gets removed by CleanHtmlFilter. The option allows bypassing the whitespace removal if it detects a non breaking space
• I'm open to other ways of doing this more cleanly

Existing unindented with new indented

Source indented with new indented