FIX: replace curly quotes to regular quotes in search terms

lib/search.rb

@@ -129,6 +129,8 @@ class Search
 
     # Removes any zero-width characters from search terms
     term.to_s.gsub!(/[\u200B-\u200D\uFEFF]/, '')
+    # Replace curly quotes to regular quotes
+    term.to_s.gsub!(/[\u201c\u201d]/, '"')
     @clean_term = term.to_s.dup
 
     term = process_advanced_search!(term)

spec/components/search_spec.rb

@@ -71,6 +71,17 @@ describe Search do
     expect(search.clean_term).to eq('capybara')
   end
 
+  it 'replaces curly quotes to regular quotes in search terms' do
+    term = '“discourse”'
+
+    expect(term == '"discourse"').to eq(false)
+
+    search = Search.new(term)
+    expect(search.valid?).to eq(true)
+    expect(search.term).to eq('"discourse"')
+    expect(search.clean_term).to eq('"discourse"')
+  end
+
   it 'does not search when the search term is too small' do
     search = Search.new('evil', min_search_term_length: 5)
     search.execute