fix(ui): remove cover-art attribution link on details pages

The "Cover art provided by X" line linked to rom.url_cover, which for
ScreenScraper contains a media download URL with embedded credentials.
Render the source name as plain text so credentials are not exposed in
the UI, while the URL stays stored in the database unchanged.

Fixes #3612

Generated-By: PostHog Code
Task-Id: 038e1de3-16ac-4f2b-8ae0-b4dade2f8ef9

Author: gantoine

frontend/src/components/Details/Info/GameInfo.vue

@@ -364,16 +364,8 @@ function getFilterValues(path: string): string[] {
               </span> </template
             >.
           </div>
-          <div v-if="rom.url_cover && coverImageSource" class="mt-1">
-            Cover art provided by
-            <a
-              :href="rom.url_cover"
-              target="_blank"
-              rel="noopener noreferrer"
-              style="color: inherit"
-            >
-              {{ coverImageSource }}</a
-            >.
+          <div v-if="coverImageSource" class="mt-1">
+            Cover art provided by {{ coverImageSource }}.
           </div>
         </v-col>
       </v-row>

frontend/src/v2/components/GameDetails/OverviewTab.vue

@@ -338,19 +338,9 @@ const coverSource = computed(() => {
           >
         </template>
       </i18n-t>
-      <i18n-t
-        v-if="coverSource && rom.url_cover"
-        keypath="rom.cover-art-provided-by"
-        tag="div"
-      >
+      <i18n-t v-if="coverSource" keypath="rom.cover-art-provided-by" tag="div">
         <template #source>
-          <a
-            class="overview-tab__attribution-link"
-            :href="rom.url_cover"
-            target="_blank"
-            rel="noopener"
-            >{{ coverSource }}</a
-          >
+          <span>{{ coverSource }}</span>
         </template>
       </i18n-t>
     </div>