Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/controllers/home_controller.rb
- app/controllers/shares_controller.rb
- app/javascript/packs/public.js
- app/models/status.rb
- app/serializers/initial_state_serializer.rb
- app/views/home/index.html.haml
- app/views/layouts/public.html.haml
- app/views/public_timelines/show.html.haml
- app/views/shares/show.html.haml
- app/views/tags/show.html.haml
- config/initializers/content_security_policy.rb
- config/locales/en.yml
- config/webpack/shared.js
- package.json

app/lib/search_query_parser.rb

@@ -1,14 +1,15 @@
 # frozen_string_literal: true
 
 class SearchQueryParser < Parslet::Parser
-  rule(:term)     { match('[^\s":]').repeat(1).as(:term) }
-  rule(:quote)    { str('"') }
-  rule(:colon)    { str(':') }
-  rule(:space)    { match('\s').repeat(1) }
-  rule(:operator) { (str('+') | str('-')).as(:operator) }
-  rule(:prefix)   { (term >> colon).as(:prefix) }
-  rule(:phrase)   { (quote >> (term >> space.maybe).repeat >> quote).as(:phrase) }
-  rule(:clause)   { (prefix.maybe >> operator.maybe >> (phrase | term)).as(:clause) }
-  rule(:query)    { (clause >> space.maybe).repeat.as(:query) }
+  rule(:term)      { match('[^\s":]').repeat(1).as(:term) }
+  rule(:quote)     { str('"') }
+  rule(:colon)     { str(':') }
+  rule(:space)     { match('\s').repeat(1) }
+  rule(:operator)  { (str('+') | str('-')).as(:operator) }
+  rule(:prefix)    { (term >> colon).as(:prefix) }
+  rule(:shortcode) { (colon >> term >> colon.maybe).as(:shortcode) }
+  rule(:phrase)    { (quote >> (term >> space.maybe).repeat >> quote).as(:phrase) }
+  rule(:clause)    { (prefix.maybe >> operator.maybe >> (phrase | term | shortcode)).as(:clause) }
+  rule(:query)     { (clause >> space.maybe).repeat.as(:query) }
   root(:query)
 end

app/lib/search_query_transformer.rb

@@ -75,6 +75,8 @@ class SearchQueryTransformer < Parslet::Transform
 
     if clause[:term]
       TermClause.new(prefix, operator, clause[:term].to_s)
+    elsif clause[:shortcode]
+      TermClause.new(prefix, operator, ":#{clause[:term]}:")
     elsif clause[:phrase]
       PhraseClause.new(prefix, operator, clause[:phrase].map { |p| p[:term].to_s }.join(' '))
     else