This PR incorporates design tweaks from #2922 without the home page or
content changes.
These are:
- Replacing all `hello@tldraw.com` with `sales@tldraw.com`
- Fix mailto links.
- Showing the first item in a section on direct routes to the section
- Splitting the article page for human-written content from article page
for generated content
- Splitting the layout for the landing page from the rest of the site
(temporarily identical to the regular content)
- Removing headings from left sidebar
- Restoring headings in right sidebar for human-written pages with > 1
heading link
- Styling block quote
- Adjusting section link appearance / layout in header / menu
- Changing the order of search results to preference docs over examples
- Updating copy on events
- Removing copy on user interface menus
- Adding hero as prop to all articles
- Updated icon
- Fixing a few broken links
- Replaces the sandpack code blocks with hljs code blocks, except in
examples.
### Change Type
- [x] `documentation` — Changes to the documentation only[^2]
Rename `@tldraw/tldraw` to just `tldraw`! `@tldraw/tldraw` still exists
as an alias to `tldraw` for folks who are still using that.
### Test Plan
- [x] Unit Tests
- [ ] End to end tests
### Release Notes
- The `@tldraw/tldraw` package has been renamed to `tldraw`. You can
keep using the old version if you want though!
- scrolling to a section was hiding the header under the top layout when
clicking on the sidebar
- dark mode wasn't hydrating correctly and we only render on client, for
now
### Change Type
- [x] `documentation` — Changes to the documentation only[^2]
Uses sandpack in all places so we can do richer code snippets.
Also, drive-by fix to fix sidebar logic.
Also, drive-by fix to hide keyboard hint (Cmd+K) for search on mobile.
### Change Type
- [x] `documentation` — Changes to the documentation only[^2]
### Release Notes
- Docs: reworks code snippets
