fix qrCode label style

pages/parameters/general_parameters.vue

@@ -69,7 +69,7 @@
               v-if="organizationProfile.isCMFCentralService"
               class="d-flex flex-column"
           >
-            <span class="mb-1">{{ $t('qrCode')}} </span>
+            <span class="mb-1 v-label" style="font-size: 12px;">{{ $t('qrCode')}} </span>
             <UiInputImage
                 v-model="parameters.qrCode"
                 field="qrCode"