Revert "Rename everything filcnaplo-related to refilc"

This reverts commit d1a9625d93.

filcnaplo_kreta_api/lib/models/school.dart

@@ -0,0 +1,19 @@
+class School {
+  String instituteCode;
+  String name;
+  String city;
+
+  School({
+    required this.instituteCode,
+    required this.name,
+    required this.city,
+  });
+
+  factory School.fromJson(Map json) {
+    return School(
+      instituteCode: json["instituteCode"] ?? "",
+      name: (json["name"] ?? "").trim(),
+      city: json["city"] ?? "",
+    );
+  }
+}