chore[wrapper]: add more proper JavaDoc to the Wrapper class description

src/main/java/edu/group5/app/model/wrapper/DbWrapper.java

@@ -14,7 +14,9 @@
 import java.util.logging.Logger;
 
 /**
- * A class for wrapping the database.
+ * A class for wrapping the database. It provides methods for connecting and disconnecting to the database, 
+ * importing and exporting users and donations, and handling SQL exceptions. 
+ * The class uses a logger to log important events and exceptions that occur during database operations.
  */
 public class DbWrapper {
   protected Connection connection;

src/main/java/edu/group5/app/model/wrapper/OrgApiWrapper.java

@@ -10,7 +10,8 @@
 import tools.jackson.databind.ObjectMapper;
 
 /**
- * A Class for Wrapping an API.
+ * A Class for Wrapping an API. 
+ * It provides methods for importing data from the API and accessing the imported data.
  */
 public class OrgApiWrapper extends Wrapper {
   private Object[] data;

src/main/java/edu/group5/app/model/wrapper/Wrapper.java

@@ -2,6 +2,9 @@
 
 /**
  * An abstract class for all Wrappers of datasets.
+ * This class defines the structure for dataset wrappers, which are responsible for importing data from various sources
+ * and providing access to the imported data. Each wrapper must implement the importData method to handle the specific
+ * data import logic and the getData method to return the imported data in a suitable format.
  */
 abstract class Wrapper {