### Release note
```release-note
[vpc] Change the subnets configmap structure from
.data.subnets==[]Subnet to .data==map[SubnetName]Subnet for simpler
representation in the dashboard.
```
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Restructured VPC subnet data organization in configuration from a
static list format to a dynamic map structure, where each subnet is now
stored with its own key containing subnet name, ID, and CIDR
information.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
### Release note
```release-note
[vpc] Change the subnets configmap structure from
.data.subnets==[]Subnet to .data==map[SubnetName]Subnet for simpler
representation in the dashboard.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
## What this PR does
The new VPC feature creates a configmap, containing the list of subnets
under the VPC. However, the configmap has the VPC ID in its name, rather
than the name of the VPC, making it harder to target inside the
dashboard, as the helper functions from Helm (e.g. sha256sum) may not be
available in the dashboard's custom resources. This patch renames the
configmap to use the VPC's name.
### Release note
```release-note
[vpc] Change the subnet configmap name to a human-friendly value
(matching the VPC name), instead of being derived via a sha256sum,
making it easier to reference in the dashboard.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
