feat(i18n): convert TagChip to t() (Batch F)

src/lib/components/TagChip.svelte

@@ -4,6 +4,7 @@
   // list it's rendered in (not a global delete — the caller decides what
   // "remove" means).
   import { X } from "@lucide/svelte";
+  import { t } from "../i18n/index.svelte";
 
   interface Props {
     tag: string;
@@ -20,12 +21,17 @@
     class="label"
     onclick={onClick}
     disabled={!onClick}
-    title={onClick ? `Filter meetings tagged "${tag}"` : undefined}
+    title={onClick ? t("tagchip.filter", { tag }) : undefined}
   >
     {tag}
   </button>
   {#if removable}
-    <button type="button" class="remove" onclick={onRemove} aria-label={`Remove tag ${tag}`}>
+    <button
+      type="button"
+      class="remove"
+      onclick={onRemove}
+      aria-label={t("tagchip.remove", { tag })}
+    >
       <X size={10} aria-hidden="true" />
     </button>
   {/if}