refactor: rename info method to get_single_contact in Contact class and update references

lab2/contact.rb

@@ -21,8 +21,7 @@ class Contact
     @phone || @telegram || @email
   end
 
-  # getSingleContact
-  def info
+  def get_single_contact
     return "Phone: #{@phone}" if @phone
     return "Telegram: #{@telegram}" if @telegram
     return "Email: #{@email}" if @email

lab2/main.rb

@@ -8,7 +8,7 @@ require_relative 'binary_search_tree'
 
 def test_classes
   contact = Contact.new(phone: '+798912465', telegram: '@example_user', email: 'test@example.com')
-  puts "Contact Info: #{contact.info}"
+  puts "Contact Info: #{contact.get_single_contact}"
 
   person = Person.new(id: '1', git: 'https://github.com/example', contact: contact)
   puts "Person Contact Info: #{person.contact_info}"

lab2/person.rb

@@ -22,7 +22,7 @@ class Person
   end
 
   def contact_info
-    @contact.info
+    @contact.get_single_contact
   end
 
   def self.valid_git?(git)