Created and implemented remove redundant files class, fixed some templating issues on settings page

src/main/java/com/example/clientproject/service/Utils/RemoveRedundantFiles.java

+package com.example.clientproject.service.Utils;
+
+import com.example.clientproject.data.shops.ShopsRepo;
+import com.example.clientproject.data.users.UsersRepo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+@Component
+public class RemoveRedundantFiles {
+    @Autowired
+    private ShopsRepo shopRepo;
+    @Autowired
+    private UsersRepo userRepo;
+
+    private final String dir = "./src/main/resources/static/imgs/uploaded/";
+
+    private Set<String> getFilesInDir(){
+        return Stream.of(new File(dir).listFiles())
+                .filter(file -> !file.isDirectory())
+                .map(File::getName)
+                .collect(Collectors.toSet());
+    }
+
+    private Set<String> getFilesInDb(){
+        Set<String> curFiles = new HashSet<>();
+        shopRepo.findAll().forEach(x -> {curFiles.add(x.getShopImage());
+                                         curFiles.add(x.getShopBanner());});
+
+        userRepo.findAll().forEach(x ->  curFiles.add(x.getUserProfilePicture()));
+
+        return curFiles;
+    }
+
+    private Set<String> getDeletableFiles(){
+        Set<String> deletableFiles = getFilesInDir();
+        deletableFiles.removeAll(getFilesInDb());
+        return deletableFiles;
+    }
+
+    public void deleteFiles(){
+        for(String fileName:getDeletableFiles()) {
+            File file = new File(dir + fileName);
+            if(file.delete()){
+                System.out.println("Deleted file " + fileName);
+            }else{
+                System.out.println("Failed to delete " + fileName);
+            }
+        }
+    }
+
+}