Update default domainOpacity to 1

Changed the default domainOpacity value from 0 to 1.

Signed-off-by: Gururaj Gurram <143020143+gururaj1512@users.noreply.github.com>

Author: gururaj1512

lib/node_modules/@stdlib/plot/vega/editor-config/axis/lib/main.js

@@ -75,7 +75,7 @@ function config() {
 		'domainOpacity': {
 			'description': 'opacity of the domain line',
 			'property': 'domainOpacity',
-			'default': 0,
+			'default': 1,
 			'type': 'number',
 			'min': 0,
 			'max': 1