fix(afc): Address PR review comments in AfcCardUnitLaneBody

- Add `rel="noopener noreferrer"` to external Spoolman link to prevent
  reverse-tabnabbing via `target="_blank"`
- Keep `!this.spoolId` guard in `spoolUrl` — spool ID `0` is invalid in
  Spoolman so the falsy check is correct and consistent with `spool` getter
- Replace hard-coded English strings in tooltip with i18n keys
  (`app.afc.WeightRemaining`, `app.afc.WeightUsed`); fix `spoolUsedWeight`
  guard from truthy to `!= null` so `0 g used` is displayed correctly

Signed-off-by: paxx12 <245230251+paxx12@users.noreply.github.com>

Author: paxx12

src/components/widgets/afc/AfcCardUnitLaneBody.vue

@@ -36,9 +36,9 @@
             </template>
             <template v-if="spoolRemainingWeight != null">
               <br>
-              {{ Math.round(spoolRemainingWeight) }} g remaining
-              <template v-if="spoolUsedWeight">
-                ({{ Math.round(spoolUsedWeight) }} g used)
+              {{ $t('app.afc.WeightRemaining', { weight: Math.round(spoolRemainingWeight) }) }}
+              <template v-if="spoolUsedWeight != null">
+                ({{ $t('app.afc.WeightUsed', { weight: Math.round(spoolUsedWeight) }) }})
               </template>
             </template>
           </span>
@@ -106,6 +106,7 @@
             v-if="spoolUrl"
             :href="spoolUrl"
             target="_blank"
+            rel="noopener noreferrer"
             class="position-absolute text-truncate text-truncate-element text-center text-decoration-none filament-link"
           >{{ spoolFilamentName }}</a>
           <span

src/locales/en.yaml

@@ -87,7 +87,9 @@ app:
     Unloading: "Unloading"
     UnloadLane: "Unload Lane"
     Weight: "Weight"
+    WeightRemaining: "{weight} g remaining"
     WeightSubtitle: "The weight of the filament in grams (without spool)."
+    WeightUsed: "{weight} g used"
   bedmesh:
     label:
       active: active