Set pagination limit at 50 machines. (#1023)

Author: squidsoup

ui/src/app/machines/views/MachineList/MachineListTable/MachineListTable.js

@@ -711,7 +711,7 @@ const MachineListTable = ({
               className: "u-align--right",
             },
           ]}
-          paginate={150}
+          paginate={50}
           rows={
             grouping === "none"
               ? generateRows({ machines, selectedMachines, ...rowProps })

ui/src/app/pools/views/Pools.js

@@ -162,7 +162,7 @@ const Pools = () => {
                   },
                 ]}
                 expanding={true}
-                paginate={150}
+                paginate={50}
                 rows={generateRows(
                   resourcePools,
                   expandedId,