Apply suggestions from code review

Co-authored-by: dahn <daan.hoogland@gmail.com>

Author: vishesh92

ui/public/locales/en.json

@@ -2800,8 +2800,8 @@
 "message.new.version.available": "A new version of CloudStack is available. Click here to check the details",
 "message.no.data.to.show.for.period": "No data to show for the selected period.",
 "message.no.description": "No description entered.",
-"message.restart.required.network": "Restart required for network(s). Click here to view network(s) which require restart.",
-"message.restart.required.vpc": "Restart required for VPC(s). Click here to view VPC(s) which require restart.",
+"message.restart.required.network": "Restart is required for network(s). Click here to view network(s) which require restart.",
+"message.restart.required.vpc": "Restart is required for VPC(s). Click here to view VPC(s) which require restart.",
 "message.offering.internet.protocol.warning": "WARNING: IPv6 supported networks use static routing and will require upstream routes to be configured manually.",
 "message.offering.ipv6.warning": "Please refer documentation for creating IPv6 enabled network/VPC offering <a href='http://docs.cloudstack.apache.org/en/latest/plugins/ipv6.html#isolated-network-and-vpc-tier'>IPv6 support in CloudStack - Isolated networks and VPC tiers</a>",
 "message.ovf.configurations": "OVF configurations available for the selected appliance. Please select the desired value. Incompatible compute offerings will get disabled.",