chore: change the default minimum gas fee to something non-zero (cele…

…stiaorg#1000)

## Overview

update the min fee to something non zero

## Checklist

- [x] New and updated code has appropriate documentation
- [x] New and updated code has new and/or updated testing
- [x] Required CI checks are passing
- [x] Visual proof for any user facing features like CLI or
documentation updates
- [x] Linked issues closed with keywords

cmd/celestia-appd/cmd/root.go

@@ -109,7 +109,7 @@ func initAppConfig() (string, interface{}) {
 	// snapshots to nodes that state sync
 	srvCfg.StateSync.SnapshotInterval = 1500
 	srvCfg.StateSync.SnapshotKeepRecent = 2
-	srvCfg.MinGasPrices = fmt.Sprintf("0%s", app.BondDenom)
+	srvCfg.MinGasPrices = fmt.Sprintf("0.001%s", app.BondDenom)
 
 	CelestiaAppCfg := CustomAppConfig{Config: *srvCfg}