Price reminder and init approval

* Start price reminder grain

* Add config and init grain at startup

* Save init wallet when already init

src/Managing.Infrastructure.Web3/Services/Gmx/GmxMappers.cs

@@ -174,7 +174,7 @@ public static class GmxMappers
             Low = Convert.ToDecimal(price.l),
             Close = Convert.ToDecimal(price.c),
             Exchange = TradingExchanges.Evm,
-            Ticker = ticker.ToString(),
+            Ticker = ticker,
             Timeframe = timeframe
         };
     }

src/Managing.Infrastructure.Web3/Services/Gmx/GmxV2Mappers.cs

@@ -122,7 +122,7 @@ internal static class GmxV2Mappers
             Low = Convert.ToDecimal(marketPrices[3]),
             Close = Convert.ToDecimal(marketPrices[4]),
             Exchange = TradingExchanges.Evm,
-            Ticker = ticker.ToString(),
+            Ticker = ticker,
             Timeframe = timeframe
         };
     }