PluginFramework tfgen does not respect name overrides for SingleNestedAttribute

[t0yv0]

What happened?

When working on #2440 testing, an issue surfaced that limits the provider author's ability to override Pulumi names for nested configuration properties under Plugin Framework, something that works expected under SDKv2 framework.

Example

Currently causing these test failures:

TestAccProviderConfigureSecretsPluginFramework/explicit-provider/first-class-secret/nested-strlist
TestAccProviderConfigureSecretsPluginFramework/explicit-provider/schema-secret/nested-strlist

It appears that these name overrides are not respected when generating the schema based on an pschema.SingleNestedAttribute.

Under SDKv2 a similar test needs to nest the name overrides under Elem, reflecting the fact that it utilizes a MaxItems=1 encoding with TF objects that have paths like obj.0.nested_strlist_config that is the object is always wrapped by a single-element array in TF. However in this PF example, there is no array wrapping, and paths are direct as in obj.nested_strlist_config. So the example probably should work as-is.

			bp.Config = map[string]*info.Schema{
				"obj": {
					Fields: map[string]*info.Schema{
						"nested_strlist_config": {
							// Prevent nestedStrlistConfigs pluralization
							Name: "nestedStrlistConfig",
						},
						"nested_secret_strlist_config": {
							// Prevent nestedSecretStrlistConfigs pluralization
							Name: "nestedSecretStrlistConfig",
						},
					},
				},
			}

        Diagnostics:
          pulumi:pulumi:Stack (test-test):
            Error: Property nestedStrlistConfig does not exist on 'prov:index/ProviderObj:ProviderObj'
              on Pulumi.yaml line 9:
               9:                                         nestedStrlistConfig:
              10:                                             fn::secret:
              11:                                                 ["A","B"]
            Cannot assign '{obj: {nestedStrlistConfig: List<string>}}' to 'pulumi:providers:prov':
              obj: Cannot assign '{nestedStrlistConfig: List<string>}' to 'prov:index/ProviderObj:ProviderObj':
                Existing properties are: nestedStrlistConfigs, nestedStringConfig, nestedBoolConfig, nestedIntConfig, nestedSecretIntConfig and 3 others

Output of pulumi about

https://github.com/pulumi/pulumi-terraform-bridge/releases/tag/v3.97.1 is affected.

Additional context

No response

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