dart_highlight_rules : add 'with' to `keywordDeclaration`

'with' clauses are used for mixin application in Dart, e.g:

`class ToggleButton extends Button with Toggleable { ... }`
Merge pull request #1750 from rmsmith/master

dart_highlight_rules : add 'with' to `keywordDeclaration`
Update LogiQL highlighting: add alias_all storage type
fix ascii filter in builder
fix regression in { pairing
update the site
update site