Rivington: set variables for unset font-family rules

rivington/sass/_extra-child-theme.scss

@@ -369,6 +369,7 @@ a {
 .widget_jp_blogs_i_follow li,
 .widget_rss_links li {
 	font-family: inherit;
+	font-family: var( --font-base, inherit );
 }
 
 /**

rivington/style-rtl.css

@@ -3957,6 +3957,7 @@ p:not(.site-title) a:hover {
 .widget_jp_blogs_i_follow li,
 .widget_rss_links li {
 	font-family: inherit;
+	font-family: var(--font-base, inherit);
 }
 
 /**

rivington/style.css

@@ -3986,6 +3986,7 @@ p:not(.site-title) a:hover {
 .widget_jp_blogs_i_follow li,
 .widget_rss_links li {
 	font-family: inherit;
+	font-family: var(--font-base, inherit);
 }
 
 /**