Since last refactoring of qweb to replace postprocessing cleaning by
onEval cleaning, the space between xml node are now ignored.
It's not a bug, but a tradeoff of the new implementation to avoid empty
line with code like
```xml
<t t-if="condition">
<div>...</div>
</t>
```
closes odoo/odoo#94170
X-original-commit: 18ae4d804064dab284dadf53eed0681b8c56a555
Signed-off-by: Jérémy Kersten <jke@odoo.com>