Clean up markup

- Avoid nested rows without cols in them
- Use .row-spaced instead of empty rows to space content

services/web/app/views/subscriptions/domain/join.pug

@@ -13,30 +13,24 @@ block content
 					-if (query.expired)
 						.alert.alert-warning #{translate("email_link_expired")}
 
-			.row
-				div  
-			.row
+			.row.row-spaced
 				.col-md-8.col-md-offset-2(ng-cloak)
 					.card(ng-controller="DomainSubscriptionJoinController")
 						.page-header
 							h1.text-centered #{translate("you_are_invited_to_group", {groupName:licenceName})}
 
-						div(ng-show="view =='personalSubscription'").row.text-centered
+						div(ng-show="view =='personalSubscription'").text-centered
 							div #{translate("cancel_personal_subscription_first")}
-							.row
-								.col-md-12  
-							.row
+							.row.row-spaced
 								.col-md-12
 									a.btn.btn.btn-default(ng-click="keepPersonalSubscription()", ng-disabled="inflight") #{translate("not_now")}
 									span  
 									a.btn.btn.btn-primary(ng-click="cancelSubscription()", ng-disabled="inflight") #{translate("cancel_your_subscription")}
 
-						div(ng-show="view =='domainSubscriptionJoin'").row.text-centered
+						div(ng-show="view =='domainSubscriptionJoin'").text-centered
 							.row
 								.col-md-12 #{translate("group_provides_you_with_premium_account", {groupName:licenceName})}
-							.row
-								.col-md-12  
-							.row 
+							.row.row-spaced
 								.col-md-12
 									.text-center
 										a.btn.btn-default(href="/project") #{translate("not_now")}
@@ -44,11 +38,9 @@ block content
 										a.btn.btn.btn-primary(ng-click="joinGroup()", ng-disabled="inflight") #{translate("verify_email_address")}  
 
 
-						span(ng-show="view =='requestSent'").row.text-centered.text-center
+						span(ng-show="view =='requestSent'").text-centered.text-center
 							.row
 								.col-md-12 #{translate("check_email_to_complete_the_upgrade")}
-							.row
-								.col-md-12  
-							.row
+							.row.row-spaced
 								.col-md-12
 									a.btn.btn.btn-primary(href="/project") #{translate("done")}

services/web/app/views/subscriptions/team/invite.pug

@@ -14,15 +14,13 @@ block content
 					-if (query.expired)
 						.alert.alert-warning #{translate("email_link_expired")}
 
-			.row
-				div  
-			.row
+			.row.row-spaced
 				.col-md-8.col-md-offset-2(ng-cloak)
 					.card(ng-controller="TeamInviteController")
 						.page-header
 							h1.text-centered #{translate("invited_to_group", {inviterName: inviterName, appName: appName})}
 
-						div(ng-show="view =='personalSubscription'").row.text-centered.message
+						div(ng-show="view =='personalSubscription'").text-centered.message
 							p #{translate("cancel_personal_subscription_first")}
 							.row
 								.col-md-12