* [REFACTORING]Rename whitespace_tokenizer to tag_tokenizer for
registration
Name representing its purpose is preferred.
* Add lindera-tantivy to plume-model's dependencies
* Install lindera-tantivy
* Add SearchTokenizerConfig struct
* Add search tokenizers to config option
* Use CONFIG for tokenizers
* Use enum to hold tokenizer config instead of initializing on config phase
* Use guard instead of duplicate default values
* Use as_deref() instead of guard
* Move SearchTokenizer from plume-models to plume-models::search::tokenizer
* Rename SearchTokenizer to TokenizerKind
* Define SearchTokenierConfig::determine_tokenizer()
* Use determine_tokenizer in SearchTokenizerConfig::init()
* Pass tokenizer config to Searcher methods
* Add LowerCase filter to Lindera tokenizer
* Add test for Lindera tokenizer
* Define SEARCH_LANG env to specify tokenizers set
* Run cargo fmt
* Make Lindera tokenizer optional
* Fix typos
* Theming
- Custom CSS for blogs
- Custom themes for instance
- New dark theme
- UI to choose your instance theme
- Option to disable blog themes if you prefer to only have the instance theme
- UI to choose a blog theme
* Implement find_for_comment for notifications
* Delete notifications when deleting a comment
This should tackle #463
* Apply rustfmt
* Implement `find_for_mention` and remove order by from `find_for_comment`
There is no need to order the notifications
* Delete notifications for mentions
* Fix notifications for comments and mentions
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