Informed by user demand to support all event types rather than just talks.
Brings consistency to further align Academic and Research Group templates.
BREAKING CHANGE:
Rename `talk` folder to `event`
Remove `type` set to `talk` in any event front matter (if applicable)
To keep existing `/talk/` URLs, set the following in `config.toml`:
```
[permalinks]
events = "/talk/:slug/"
```
- support both 1 and 2 column variations for following widgets: "pages" "featured" "experience" "accomplishments" "contact" "blank" "tag_cloud"
- fix parallax conflict with new CSS page grid causing 100% entire page height for a section
- add dedicated child div for bg prevents parallax 100% height issue within new CSS grid page wrapper
- fix `.page-wrapper` min-height when no-navbar
- fix `.home-section.fullscreen` min-height when no-navbar
- refactor `contact-widget` styles to use existing `wg-contact` class