Gas limit setting to default 200000 is too low in some cases

[kwunyeung]

Generic information

• OS name and version: iOS 14
• Application build code: 5400
• Network type (mobile/Wi-Fi): Wifi

Bug description

Transaction will be failed due to out of gas when there are many messages in a single transaction.

https://morpheus.desmos.network/transactions/D37BECE1DE2079EA25C1A5E045471069634B4735156D45466D383C792D2F5C4F

Steps to reproduce

Add a few posts or reactions within 30 seconds before the transaction is broadcasted. The transaction will be failed due to out of gas.

Expected behavior

The gas limit should be increased with the number of messages in the transaction is increased. We can consider getting the gas estimate with gas adjustment or simply add a fix number gas per message before we have the fixed minimum fee fully functional.