Make resource citations support multiline strings

Fixes #1466

Author: bkis

Tekst-API/tekst/models/resource.py

@@ -202,7 +202,7 @@ class ResourceBase(ModelBase, ModelFactoryMixin):
     citation: Annotated[
         ConStrOrNone(
             max_length=4096,
-            cleanup="oneline",
+            cleanup="multiline",
         ),
         Field(
             description="Citation details for this resource",

Tekst-Web/src/components/resource/ResourceInfoContent.vue

@@ -92,7 +92,7 @@ const showInfoModal = ref(false);
       <icon-heading level="3" :icon="FormatQuoteIcon">
         {{ $t('browse.contents.widgets.infoWidget.citeAs') }}
       </icon-heading>
-      <div :style="{ fontFamily: resource.contentFont }" class="text-medium">
+      <div :style="{ fontFamily: resource.contentFont }" class="text-medium pre-wrap">
         {{ resource.citation }}
       </div>
     </div>

Tekst-Web/src/forms/resources/config/ResourceSettingsPropertiesFormItems.vue

@@ -56,9 +56,12 @@ const metadataKeysOptions = computed(() =>
   <form-section :title="$t('models.resource.citation')">
     <n-form-item path="citation" :show-label="false">
       <n-input
+        type="textarea"
+        maxlength="4096"
+        show-count
         v-model:value="model.citation"
         :placeholder="$t('models.resource.citation')"
-        @keydown.enter.prevent
+        @keydown.enter.stop
       />
     </n-form-item>
   </form-section>