Submit Double to Valora for Dapp listing (#488)

> To make a submission to the Dapps Page, please complete the task lists
> below; otherwise remove them.

Your Dapp:

- [X] connects to Valora via WalletConnect V2;
- [X] must be mobile-first or mobile responsive;
- [X] is in one of the existing categories; and
- [X] includes a link to user documentation.

For more information see the [Valora Listing
Overview](https://docs.valora.xyz/listing/overview).

---------

Co-authored-by: Tom McGuire <[email protected]>

locales/base.json

@@ -37,6 +37,7 @@
     "resource": "Get rewards by supporting small businesses",
     "ethichub": "Lend capital to unbanked farmers through DeFi crowdfunding",
     "uniswap": "Swap and get rewards by providing liquidity",
+    "double": "Get rewards by providing liquidity",
     "pooltogether": "Enter daily raffles with your crypto for a chance to get rewards",
     "cask": "Automate payments, subscriptions, and investments with your crypto",
     "spirals": "Support climate projects",

src/valora-dapp-list.json

@@ -251,6 +251,15 @@
       "listOnAndroid": true,
       "listOnIos": true
     },
+    {
+      "name": "Double",
+      "id": "double",
+      "categoryId": "exchanges",
+      "categories": ["exchanges", "earn"],
+      "url": "https://app.double2win.xyz/#/lend?chain=celo",
+      "listOnAndroid": true,
+      "listOnIos": true
+    },
     {
       "name": "Uniswap",
       "id": "uniswap",