Also adds a parameter to `md_to_html` to only render inline elements (so that we don't have titles or images in blog descriptions). And moves the delete button for the blog on the edition page.
I still have to update the SQLite migration once others PRs with migrations will be merged.
Also, there will be a problem when you edit a blog while not owning its banner or icon: when validating they will be reset to their default values… I don't see a good solution to this until we have a better way to handle uploads with Rocket (the same is probably happening for articles btw).
And the icon/banner are not federated yet, I don't know if I should add it to this PR or if it can come after?
![image](https://user-images.githubusercontent.com/16254623/53894510-7d853300-4030-11e9-8a2c-f5c0b0c7f512.png)
![image](https://user-images.githubusercontent.com/16254623/53894539-8b3ab880-4030-11e9-8113-685a27be8d7c.png)
Fixes#453Fixes#454
With this PR, when JS is activated and WASM supported, the article editor will be dynamically replaced with `contenteditable`s elements. This makes the editing interface simpler and less like a regular form. It will also allow us to easily add visual formatting with native browser APIs (and to insert images or videos directly). Here is a little demo:
![peek 05-03-2019 16-12](https://user-images.githubusercontent.com/16254623/53815536-1dc05680-3f62-11e9-94d3-b363ed84eb97.gif)
There is still a lot to do, but it is a good first step.
Fixes#255
* Slightly improve the media experience
- Use a grid to display the list of media
- Add icons for non-image media preview
- Paginate the gallery
- Add links to the gallery in the editor and in the profile settings to make it more discoverable when you need it
Fixes#432
* Allow video and audio tags in SafeString
Otherwise we can't display their preview, nor show them in articles
Also show controls by default for these two elements
* Show fallback images for audio and unknown files, to make them more visible
* Add a new constructor to SafeString when the input is trusted and doesn't need to be escaped.
And use it to generate media previews.
* Make it possible to insert video/audio in articles