[TASK] Integrate label into the select field inside the filter

Resources/Private/Partials/Filter.html

 <f:form id="tx-sgnews-filter" method="get" objectName="newsFilter">
 	<div class="tx-sgnews-filter-bar">
 		<div class="tx-sgnews-filter-bar-form-control">
-			<label for="filter-categories">
-				<f:if condition="{categoryLabel}">
-					<f:then>
-						{categoryLabel}
-					</f:then>
-					<f:else>
-						<f:translate key="frontend.filter.category"/>
-					</f:else>
-				</f:if>
-			</label>
 			<f:form.select class="tx-sgnews-select form-control" multiple="0" size="1" value="{selectedCategory.uid}"
 						   property="category" optionLabelField="title" optionValueField="uid" options="{categories}"
-						   id="filter-categories" prependOptionLabel="" prependOptionValue=""/>
+						   id="filter-categories" prependOptionValue=""
+						   prependOptionLabel="{f:if(condition: '{categoryLabel}', then: '{categoryLabel}', else: '{f:translate(key: \'frontend.filter.category\')}')}" />
 		</div>
 		<div class="tx-sgnews-filter-bar-form-control">
-			<label for="filter-tags">
-				<f:if condition="{tagLabel}">
-					<f:then>
-						{tagLabel}
-					</f:then>
-					<f:else>
-						<f:translate key="frontend.filter.tag"/>
-					</f:else>
-				</f:if>
-			</label>
 			<f:form.select class="tx-sgnews-select form-control" multiple="0" size="1" value="{selectedTag.uid}"
 						   property="tag" optionValueField="uid" options="{tags}" id="filter-tags"
-						   optionLabelField="title" prependOptionLabel="" prependOptionValue=""/>
+						   optionLabelField="title" prependOptionValue=""
+						   prependOptionLabel="{f:if(condition: '{tagLabel}', then: '{tagLabel}', else: '{f:translate(key: \'frontend.filter.tag\')}')}"/>
 		</div>
 	</div>
 </f:form>