Translate all code to English (#1836)

* Review the EN heading format.

* Fix pythontutor headings.

* Fix pythontutor headings.

* bug fixes

* Fix headings in **/summary.md

* Revisit the CN-to-EN translation for Python code using Claude-4.5

* Revisit the CN-to-EN translation for Java code using Claude-4.5

* Revisit the CN-to-EN translation for Cpp code using Claude-4.5.

* Fix the dictionary.

* Fix cpp code translation for the multipart strings.

* Translate Go code to English.

* Update workflows to test EN code.

* Add EN translation for C.

* Add EN translation for CSharp.

* Add EN translation for Swift.

* Trigger the CI check.

* Revert.

* Update en/hash_map.md

* Add the EN version of Dart code.

* Add the EN version of Kotlin code.

* Add missing code files.

* Add the EN version of JavaScript code.

* Add the EN version of TypeScript code.

* Fix the workflows.

* Add the EN version of Ruby code.

* Add the EN version of Rust code.

* Update the CI check for the English version  code.

* Update Python CI check.

* Fix cmakelists for en/C code.

* Fix Ruby comments

en/codes/ruby/chapter_tree/binary_tree.rb

@@ -0,0 +1,38 @@
+=begin
+File: binary_tree.rb
+Created Time: 2024-04-18
+Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com)
+=end
+
+require_relative '../utils/tree_node'
+require_relative '../utils/print_util'
+
+### Driver Code ###
+if __FILE__ == $0
+  # Initialize binary tree
+  # Initialize nodes
+  n1 = TreeNode.new(1)
+  n2 = TreeNode.new(2)
+  n3 = TreeNode.new(3)
+  n4 = TreeNode.new(4)
+  n5 = TreeNode.new(5)
+  # Build references (pointers) between nodes
+  n1.left = n2
+  n1.right = n3
+  n2.left = n4
+  n2.right = n5
+  puts "\nInitialize binary tree\n\n"
+  print_tree(n1)
+
+  # Insert node P between n1 -> n2
+  _p = TreeNode.new(0)
+  # Insert node _p between n1 -> n2
+  n1.left = _p
+  _p.left = n2
+  puts "\nAfter inserting node _p\n\n"
+  print_tree(n1)
+  # Remove node
+  n1.left = n2
+  puts "\nAfter deleting node _p\n\n"
+  print_tree(n1)
+end