[FEATURE] Set LTR content direction on initial rendering
[FEATURE] Set LTR content direction on initial rendering

The content direction was only set for RTL on initial rendering. If the
setting was changed later on, the html attribute was also set for LTR.
So, the behavior was inconsistent.

Since LTR is the default, rendering the attribute wouldn't be necessary,
but it was deemed more backwards-compatible, in case someone used a CSS
selector like html[dir="ltr"].

Change-Id: I430c0205c102b37f329e7523fc824c195d6e01d0

olirogers/openui5,SAP/openui5,cschuff/openui5,cschuff/openui5,SQCLabs/openui5,nzamani/openui5,SAP/openui5,SQCLabs/openui5,nzamani/openui5,SAP/openui5,olirogers/openui5,olirogers/openui5,SAP/openui5,cschuff/openui5,nzamani/openui5,SQCLabs/openui5