#598: fix autocomplete query

Author: JoaoFelipe

app/models/country.rb

@@ -22,7 +22,7 @@ def to_label
   def self.search_name(country: nil, substring: false)
     country = "%#{country}%" if country.present? && substring
     Country.where(
-      "name COLLATE LIKE :country
+      "name LIKE :country
       ", {country: country}
     )
   end

app/models/institution.rb

@@ -21,8 +21,8 @@ def to_label
   def self.search_name(institution: nil, substring: false)
     institution = "%#{institution}%" if institution.present? && substring
     Institution.where(
-      "name COLLATE LIKE :institution 
-       OR code COLLATE LIKE :institution
+      "name LIKE :institution 
+       OR code LIKE :institution
       ", {institution: institution}
     )
   end