feat: replace governance banner with builders call-to-action (#63)

The "Your Voice Matters" card used pezkuwiwallet://pezkuwi/open/governance.
That path prefix-matches the referendum deep link handler (/open/gov), which
requires an id; without one it reports "Referendum not found". Worse, a
matched-but-failed deep link is persisted and never cleared, so it replays on
every app launch.

Replace it with a builders/developer call-to-action (image: Gre Miraza scene)
that links to an external Telegram invite. External https links bypass the
in-app deep link engine entirely, so this card cannot get stuck.

prod + dev kept in sync; en/ku/tr localised.

banners/v2/content/assets/localized/en.json

@@ -15,9 +15,9 @@
         "title": "PEZ Token",
         "details": "The utility token on Pezkuwi Asset Hub.\nTrade, swap, and use in DApps."
     },
-    "pezkuwi-governance-001": {
-        "title": "Your Voice Matters",
-        "details": "Participate in governance decisions.\nVote on proposals and shape the future!"
+    "pezkuwi-builders-001": {
+        "title": "Write Your Name Into History",
+        "details": "From Gre Miraza to the information age — at this breaking point, we're calling builders to the founding team."
     },
     "pezkuwi-community-001": {
         "title": "Join Our Community",