* Add target="_blank" (on embeds only!)
* When pasting a link, the cursor position is moved after the paste
* Can't reproduce a link slipping into the embed in front of it
@Tirokk it is an unpleasant side efffect that mentions + hastags appear
differently on Edit+View. That's because they don't get parsed from
HTML, it's a one way, they are write only. So, when viewing content,
hashtags and mentions appear as plain links. I don't think I can do
anything about it.
Regarding some links not being embedded: Only those links that have an
oembed provider in this file:
f44d0f1f96/backend/src/schema/resolvers/embeds/providers.json
...will be embedded. Your example `http://backreaction.blogspot.com` and `https://de.wikipedia.org/wiki/Yin_und_Yang`
have no embed provider and won't be embedded.
We would have to add oembed providers to this list if we wanted to embed those
links, too.
Some important commit messages:
```
Fix youtu.be not being embedded
And also try to maintain the old behaviour matching
`provider.provider_url`.
```
```
Remove confusing code comments and obsolete code
I discovered that the behaviour of no duplicate notifications being send
out is caused by the frontend: When the editor reads html from the
backend, it will parse hashtags and mentions as ordinary links, not as
their respective nodes during editing. Also, we don't have to worry
about duplicate ids being found: The cypher statement will implicitly
suppress duplicate notification nodes for the same user.
So let's remove the code to avoid confusing the next developer.
```
```
Test editor.getHTML()
I do this because I'm not able to test the content of `this.editor` from
a wrapper of `vue-test-utils`. If I call `this.editor.getHTML` directly
and use it as a computed property `renderedContent` to populate a `<div
v-html="renderedContent" />` this will not work for the embeds. So, my
current best bet is to test the editor object isolated from a real
component. ;(
```
```
Add core-js as explicit dependency
Because of build errors on Travis.
See: https://stackoverflow.com/a/55313456
Remove as soon as this issue is resolved:
https://github.com/storybookjs/storybook/issues/7591
```
```
Refactor: Keep Runtime-only builds
See: https://vuejs.org/v2/guide/installation.html#Runtime-Compiler-vs-Runtime-only
```
