US06: Add a button for the owner create form to the owners list, fix bug where all whitespaces were considered valid input

backend/src/main/java/at/ac/tuwien/sepm/assignment/individual/persistence/impl/OwnerJdbcDao.java

@@ -127,7 +127,7 @@ public class OwnerJdbcDao implements OwnerDao {
             int changes = jdbcTemplate.update(connection -> {
                 PreparedStatement ps = connection.prepareStatement(sql, PreparedStatement.RETURN_GENERATED_KEYS);
 
-                ps.setString(1, owner.getName());
+                ps.setString(1, owner.getName().trim());
                 ps.setObject(2, owner.getCreatedAt());
                 ps.setObject(3, owner.getUpdatedAt());
                 return ps;

backend/src/main/java/at/ac/tuwien/sepm/assignment/individual/util/Validator.java

@@ -12,7 +12,7 @@ import java.util.Map;
 @Component
 public class Validator {
     public void validateNewOwner(Owner owner) throws ValidationException {
-        if(owner.getName() == null || owner.getName().isEmpty()) {
+        if(owner.getName() == null || owner.getName().isEmpty() || owner.getName().isBlank()) {
             throw new ValidationException("Required value name missing");
         }
     }

frontend/wendys-friends/src/app/component/add-owner/add-owner.component.html

@@ -17,7 +17,7 @@
   <form (ngSubmit)="addOwner()" #ownerForm="ngForm">
     <div class="form-group">
       <label for="name">Name</label>
-      <input type="text" class="form-control" name="name" [(ngModel)]="owner.name" required>
+      <input type="text" class="form-control" name="name" [(ngModel)]="owner.name" pattern="\s*\S+.*" required>
     </div>
 
     <button type="submit" class="btn btn-success" [disabled]="!ownerForm.form.valid" (submit)="addOwner()">Submit</button>

frontend/wendys-friends/src/app/component/list-owners/list-owners.component.html

@@ -14,6 +14,7 @@
       </div>
       <button type="submit" class="btn btn-primary"><i class="fas fa-search"></i></button>
       <button type="button" onclick="document.getElementById('searchForm').reset();" class="btn btn-danger"><i class="fas fa-times"></i></button>
+      <a href="owner/add" class="btn btn-success"><i class="fas fa-plus"></i></a>
     </div>
   </form>
   <table class="table">