clean up with constants

src/main/java/com/safeqr/app/qrcode/service/EmailVerificationService.java

@@ -16,8 +16,8 @@ public class EmailVerificationService {
     public EmailVerificationService(EmailRepository emailRepository) {
         this.emailRepository = emailRepository;
     }
-    public void insertDB(EmailEntity EmailEntity) {
-        emailRepository.save(EmailEntity);
+    public void insertDB(EmailEntity emailEntity) {
+        emailRepository.save(emailEntity);
     }
 
 }

src/main/java/com/safeqr/app/qrcode/service/PhoneVerificationService.java

@@ -16,8 +16,8 @@ public class PhoneVerificationService {
     public PhoneVerificationService(PhoneRepository phoneRepository) {
         this.phoneRepository = phoneRepository;
     }
-    public void insertDB(PhoneEntity PhoneEntity) {
-        phoneRepository.save(PhoneEntity);
+    public void insertDB(PhoneEntity phoneEntity) {
+        phoneRepository.save(phoneEntity);
     }
 
 }

src/main/java/com/safeqr/app/qrcode/service/SMSVerificationService.java

@@ -16,8 +16,8 @@ public class SMSVerificationService {
     public SMSVerificationService(SMSRepository smsRepository) {
         this.smsRepository = smsRepository;
     }
-    public void insertDB(SMSEntity SMSEntity) {
-        smsRepository.save(SMSEntity);
+    public void insertDB(SMSEntity smsEntity) {
+        smsRepository.save(smsEntity);
     }
 
 }

src/main/java/com/safeqr/app/qrcode/service/TextVerificationService.java

@@ -10,7 +10,7 @@ import org.springframework.stereotype.Service;
 @Service
 public class TextVerificationService {
     private final TextRepository textRepository;
-
+    private static final Logger logger = LoggerFactory.getLogger(TextVerificationService.class);
     @Autowired
     public TextVerificationService(TextRepository textRepository) {
         this.textRepository = textRepository;
@@ -18,5 +18,5 @@ public class TextVerificationService {
     public void insertDB(TextEntity textEntity) {
         textRepository.save(textEntity);
     }
-    private static final Logger logger = LoggerFactory.getLogger(TextVerificationService.class);
+
 }

src/main/java/com/safeqr/app/qrcode/service/WifiVerificationService.java

@@ -16,8 +16,8 @@ public class WifiVerificationService {
     public WifiVerificationService(WifiRepository wifiRepository) {
         this.wifiRepository = wifiRepository;
     }
-    public void insertDB(WifiEntity WifiEntity) {
-        wifiRepository.save(WifiEntity);
+    public void insertDB(WifiEntity wifiEntity) {
+        wifiRepository.save(wifiEntity);
     }
 
 }