5.0.21

Release note of 5.0.21:

3113f5d Refs #38557,Modify LINE Pay translation for duplicated instrument.
e211239 refs #37730. Add share template mechnism. Improve AICompletion
1bf6456 Refs #37654,Add logic to set the email-5 parameter if it is empty.Set the item_name to the description.
b8a93eb refs #38445. Improved element existence checks in crmdependentselect
aeba101 refs #36410, gh-110, fixes user email verify issue.
caac644 Refs #37567, Modify loading random_compat library for queue runing.
f5dd9bc refs #30318, #38537, fixes default mail from address issue when editing mailing newsletter
0a8eb4f Res #37465, update payment backer fields and labels.