fix(welcome button): align text to vertical center (#585)

Author: nekonado

themes/conventional-commits/static/css/scss/layout/_welcome.scss

@@ -66,6 +66,7 @@
     padding: 12px 16px;
     border-radius: 50px;
     text-decoration: none;
+    line-height: 1.5;
     color: $welcome-action-color;
     border: 1px solid $welcome-action-color;
     margin-right: $gap-md;