Complete cluster node pools

[hanlun0804]

Complete the site including cluster node pools. Should follow the design of the rest of the site.

This is the current page:

[hanlun0804]

Blocked by:

• Implement node pools display #200
• Implement edit node pools display #203
• Implement node pool delete functionality #204
• Implement create node pools functionality #205
• Implement edit node pools funtionality #206
• Add scaling rules to nodepool autoscaling #286
• Implement price calculation for node pools #288
• Implement fetch for node pool machine classes #289