fix(build): use conservativeCollapse for htmlmin

This collapses white space down to one space instead of stripping it all
out. This is generally safer for textContent areas then stripping out
all spaces

Author: eddiemonge

templates/common/root/_Gruntfile.js

@@ -318,6 +318,7 @@ module.exports = function (grunt) {
       dist: {
         options: {
           collapseWhitespace: true,
+          conservativeCollapse: true,
           collapseBooleanAttributes: true,
           removeCommentsFromCDATA: true,
           removeOptionalTags: true