fix: Make error message more generic, so is applicable to backend and cloud blocks.

Author: SarahFrench

internal/command/meta_backend_errors.go

@@ -17,7 +17,7 @@ type errWrongWorkspaceForPlan struct {
 }
 
 func (e *errWrongWorkspaceForPlan) Error() string {
-	return fmt.Sprintf(`The plan file describes changes to the %q workspace, but the %q workspace is currently selected in the working directory.
+	return fmt.Sprintf(`The plan file describes changes to the %q workspace, but the %q workspace is currently in use.
 
 Applying this plan with the incorrect workspace selected could result in state being stored in an unexpected location, or a downstream error
 when Terraform attempts apply a plan using the other workspace's state.

internal/command/meta_backend_test.go

@@ -1872,7 +1872,7 @@ func TestMetaBackend_planLocal_mismatchedWorkspace(t *testing.T) {
 	if !diags.HasErrors() {
 		t.Fatalf("expected an error but got none: %s", diags.ErrWithWarnings())
 	}
-	expectedMsg := fmt.Sprintf("The plan file describes changes to the %q workspace, but the %q workspace is currently selected in the working directory",
+	expectedMsg := fmt.Sprintf("The plan file describes changes to the %q workspace, but the %q workspace is currently in use",
 		defaultWorkspace,
 		selectedWorkspace,
 	)