This patch refactors the API following the [API Best Practices][api]
documentation. The UpdatePlatform method is modeled after a mutating
operation described [by Netflix][nflx] instead of using a REST resource
representation. This makes it much easier to iterate over the fields
that need to be updated as the PlatformUpdateOperation is a flat data
structure while a Platform resource may have nested fields. Nested
fields are more complicated and less clear to handle with a FieldMask.
This patch also adds a snapckbar message on save. Previously, the save
button didn't give any indication of success or failure. This patch
fixes the problem by adding a snackbar message that pop up at the bottom
of the screen nicely.
When the snackbar message is dismissed or times out the save button is
re-enabled.
[api]: https://protobuf.dev/programming-guides/api/
[nflx]: https://netflixtechblog.com/practical-api-design-at-netflix-part-2-protobuf-fieldmask-for-mutation-operations-2e75e1d230e4
Examples:
FieldMask for ListPlatforms
```
grpcurl -H "x-oidc-id-token: $(holos token)" -d @ ${HOLOS_SERVER##*/} holos.platform.v1alpha1.PlatformService.ListPlatforms <<EOF
{
"org_id": "018f36fb-e3f7-7f7f-a1c5-c85fb735d215",
"field_mask": { "paths": ["id","name"] }
}
EOF
```
```json
{
"platforms": [
{
"id": "018f36fb-e3ff-7f7f-a5d1-7ca2bf499e94",
"name": "bare"
},
{
"id": "018f6b06-9e57-7223-91a9-784e145d998c",
"name": "gary"
},
{
"id": "018f6b06-9e53-7223-8ae1-1ad53d46b158",
"name": "jeff"
},
{
"id": "018f6b06-9e5b-7223-8b8b-ea62618e8200",
"name": "nate"
}
]
}
```
Closes: #171
