Add Tron chain to Pezkuwi overlay; regenerate merged configs

- pezkuwi-overlay/chains/pezkuwi-chains.json: add Tron mainnet
  (native TRX + USDT-TRC20) chain entry, plus new TRX/Tron icons
  under pezkuwi-overlay/icons/ (the correct source location - synced
  into the top-level icons/ output by sync_from_nova.py).
- Regenerate all chains/*, xcm/*, staking/* merged output via
  sync_from_nova.py against the current nova-base submodule state.
- Also picks up previously-uncommitted local fixes: canonical
  Telegram/Twitter links (t.me/kurdishmedya, x.com/bizinikiwi) in
  README/docs/banners, and Pezkuwi mainnet + People chain SubQuery
  staking overrides.

staking/global_config.json

@@ -3,8 +3,10 @@
   "proxyApiUrl": "https://subquery-proxy-prod.novasama-tech.org",
   "multiStakingApiUrl": "https://subquery-multi-staking-prod.novasama-tech.org",
   "stakingApiOverrides": {
-    "https://subquery.pezkuwichain.io/assethub": [
-      "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949"
+    "https://subquery.pezkuwichain.io": [
+      "1aa94987791a5544e9667ec249d2cef1b8fdd6083c85b93fc37892d54a1156ca",
+      "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "69a8d025ab7b63363935d7d9397e0f652826c94271c1bc55c4fdfe72cccf1cfa"
     ]
   }
 }