Pontoon: Update Yucatec Maya (yua) localization of Firefox Send

Localization authors:
- Julio Gomez <jegs87@gmail.com>

public/locales/yua/send.ftl

@@ -0,0 +1,15 @@
+# Firefox Send is a brand name and should not be localized.
+title = Firefox Send
+
+## Send version 2 strings
+
+-firefox = Firefox
+-mozilla = Mozilla
+# byte abbreviation
+bytes = B
+# kibibyte abbreviation
+kb = KB
+# mebibyte abbreviation
+mb = MB
+# gibibyte abbreviation
+gb = GB