Changes:
- Remove trailing comma from list of keywords.
- Improve keywords precedence:
1. Use "keywords" term page titles.
2. Use "keywords" from front matter if "keywords" is not a taxonomy.
3. Use "tags" term page titles.
4. Use term page titles from all taxonomies.
- Enable schema for all page kinds, previously limited to kind = page.
- Remove trailing slashes from void elements.
- Improve readability.
Closes#7570
Co-authored by: 0urobor0s <0urobor0s@users.noreply.github.com>
The page images selection order as follows:
1. Page's images parameter, image resources are supported.
2. Page's image resources that naming in *feature*, *cover* or *thumbnail* pattern.
3. If no page images specified, then the first one of site's images will be used as the fallback, supports site resources.
* Fix: updated date logic in opengraph template
* Updated date logic in schema template
* Reformatted opengraph and schema
* Wrapped PublishDate and Lastmod in with
Having them in separate files should make maintainance easier.
When adding new or making changes to the templates:
```bash
mage generate
```
This will get the Go code in sync.
Fixes#4457
