patch 8.2.1307: popup window width does not include number of sign columns

Problem:    popup window width does not include number, fold of sign column
            width.
Solution:   Take number, fold and sign column with into account.

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1307,
 /**/
     1306,
 /**/