fix(promos): restore missing colon in Overtune video copy

The Confluence source row splits the product name and tagline into two
separate paragraphs in one table cell; pull-campaigns' cell-text
extraction joins multi-paragraph cells with a plain space, so the colon
convention used by every other row ("Product: tagline") was lost for
this entry. Hand-patched here since campaigns.ts is regenerated on
sync — the source row itself still needs the same fix in Confluence or
this will revert on the next pull-campaigns run.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: 2 people

src/assets/data/promos/campaigns.ts

@@ -164,7 +164,7 @@ export const campaignVideoPromos: Record<string, PromoData> = {
     slot: 2,
     startDate: "2026-02-18",
     message:
-      "Overtune Record your vocals on top of premium beats! Polish, personalize and share with ease",
+      "Overtune: Record your vocals on top of premium beats! Polish, personalize and share with ease",
     tracking: {
       category: "Video embed",
       action: "Watch release video",