chore: Add trailing newline

Author: gonfunko

packages/blockly/msg/messages.js

@@ -1769,4 +1769,4 @@ Blockly.Msg.BLOCK_LABEL_CONTAINER = 'container';
 /** @type {string} */
 /// Part of an accessibility label for a block that indicates that it is
 /// a value block, i.e. that it has an output connection.
-Blockly.Msg.BLOCK_LABEL_VALUE = 'value';
+Blockly.Msg.BLOCK_LABEL_VALUE = 'value';