In the tag editor, make the reset button appear on the left side for RTL text; #2673
Test for string length
Formatting
Make is_rtl()/set_rtl() methods private
Remove trailing semicolon
Use isEmpty() instead of length()
Both cases move the clear button to the same position
Merge pull request #4102 from Tatsh/fix-edittagdialog-rtl

In the tag editor, make the reset button appear on the left side for RTL
Fixes #2673