Move USS file to correct folder

UOP1_Project/Assets/Scripts/Quests/Resources/QuestEditorWindow.uxml

 <ui:UXML xmlns:ui="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements" xsi="http://www.w3.org/2001/XMLSchema-instance" engine="UnityEngine.UIElements" editor="UnityEditor.UIElements" noNamespaceSchemaLocation="../../../UIElementsSchema/UIElements.xsd" editor-extension-mode="False">
     <Style src="QuestEditorWindow.uss" />
-    <Style src="/Assets/DialogueUSS.uss" />
+    <Style src="DialogueUSS.uss" />
     <ui:VisualElement name="quest-editor-window" style="flex-direction: row; height: 100%; width: 100%; min-height: 700px;">
         <ui:VisualElement name="1st-column" style="width: 30%;">
             <ui:VisualElement name="questlines" class="padding5 ColorStyling1" style="width: auto; height: 150px;">