fix(ergol): Comma & full stop in numrow layer (#31)

In Ergo-L, "," and "." typed from the numrow layer would output "g" and
"," respectively.

kanata/defalias_ergol_pc.kbd

@@ -21,8 +21,8 @@
   7 7
   8 8
   9 9
-  , ,
-  . .
+  , .
+  . n
 )
 
 ;; Symbols layer