[TASK] Update .editorconfig file

Add html and tmpl files to .editorconfig

Resolves: #63277
Releases: master
Change-Id: I2da5a46af412c390b67e5ead04543bffe130c63b
Reviewed-on: http://review.typo3.org/34521
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>