Fixed metadata fetching issue in Twitter (#129)

Earlier Twitter could not fetch the metadata properly, now there are
specific meta tags for Twitter.

env/milkomeda-testnet.env

@@ -22,3 +22,5 @@ REACT_APP_CARDANO_RESERVECOIN_ADDRESS=cc53696f7d40c96f2bca9e2e8fe31905d8207c4106
 REACT_APP_EVM_RESERVECOIN_ADDRESS=0x66c34c454f8089820c44e0785ee9635c425c9128
 REACT_APP_CARDANO_STABLECOIN_ADDRESS=27f2e501c0fa1f9b7b79ae0f7faeb5ecbe4897d984406602a1afd8a874537461626c65436f696e
 REACT_APP_EVM_STABLECOIN_ADDRESS=0xcbA90fB1003b9D1bc6a2b66257D2585011b004e9
+
+REACT_APP_LOGO_PATH=Logo_symbol.png

env/milkomeda.env

@@ -23,3 +23,4 @@ REACT_APP_EVM_RESERVECOIN_ADDRESS=0xd90f0f3332d8fccd5f74f0830f05cfca46c31ddf
 REACT_APP_CARDANO_STABLECOIN_ADDRESS=f4da952809ee5db368fc8ff6de939ac55543b97524614bac98a393964d4f44
 REACT_APP_EVM_STABLECOIN_ADDRESS=0xbfb54440448e6b702fa2a1d7033cd5fb0d9c5a27
 
+REACT_APP_LOGO_PATH=Logo_symbol.png

env/sepolia.env

@@ -17,3 +17,5 @@ REACT_APP_RC_SYMBOL=SOR
 REACT_APP_LIMIT_PER_TXN=10000
 REACT_APP_EVM_RESERVECOIN_ADDRESS=0xc61ac381F4F585fd194D3C5cE20B76826b960e5E
 REACT_APP_EVM_STABLECOIN_ADDRESS=0x6b930182787F346F18666D167e8d32166dC5eFBD
+
+REACT_APP_LOGO_PATH=Logo_symbol.png

public/index.html

@@ -10,7 +10,11 @@
     <meta property="og:description" content="Djed is a formally verified crypto-backed autonomous stablecoin protocol. It has been researched since Q2 2020, its whitepaper has been released in August 2021, and it has multiple implementations and deployments. Here you can interact with a deployment that uses these smart contracts on %REACT_APP_BC%." />
     <meta property="og:image" content="%PUBLIC_URL%/%REACT_APP_LOGO_PATH%" />
     <meta property="og:url" content="%PUBLIC_URL%" />
-    <meta name="twitter:card" content="%PUBLIC_URL%/%REACT_APP_LOGO_PATH%" />
+    <meta name="twitter:card" content="summary_large_image">
+    <meta property="twitter:url" content="%PUBLIC_URL%">
+    <meta name="twitter:title" content="Djed on Ethereum Classic">
+    <meta name="twitter:description" content="Djed is a formally verified crypto-backed autonomous stablecoin protocol. It has been researched since Q2 2020, its whitepaper has been released in August 2021, and it has multiple implementations and deployments. Here you can interact with a deployment that uses these smart contracts on Ethereum Classic.">
+    <meta name="twitter:image" content="%PUBLIC_URL%/%REACT_APP_LOGO_PATH%">
     <!--link rel="apple-touch-icon" href="%PUBLIC_URL%/logo180.png" /-->
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />