refactor: update data type handling to use "type" field syntax in data_type.rs and flow_type.rs

Author: nicosammito

crates/cli/src/analyser/data_type.rs

@@ -47,7 +47,7 @@ impl Analyser {
             ));
         }
 
-        if dt.type == "" {
+        if dt."type" == "" {
             self.reporter.add(Diagnose::new(
                 dt.identifier.clone(),
                 adt.original_definition.clone(),

crates/cli/src/analyser/flow_type.rs

@@ -108,12 +108,12 @@ impl Analyser {
                     },
                 ));
             }
-            if !self.data_type_identifier_exists(&setting.type, None) {
+            if !self.data_type_identifier_exists(&setting."type", None) {
                 self.reporter.add(Diagnose::new(
                     name.clone(),
                     original.clone(),
                     DiagnosticKind::UndefinedDataTypeIdentifier {
-                        identifier: setting.type.clone(),
+                        identifier: setting."type".clone(),
                     },
                 ));
             }