cli: convert coins to smallest unit registered (#7777)

* cli: convert coins to smallest unit registered

fixes: #7623

- test order of decimal operations
- support both int and decimal coins, truncate when normalizing to
  base unit

* Update types/coin_test.go

* Update types/coin_test.go

Co-authored-by: Alessio Treglia <alessio@tendermint.com>
Co-authored-by: Amaury <amaury.martiny@protonmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

types/simulation/rand_util_test.go

@@ -56,7 +56,7 @@ func TestRandStringOfLength(t *testing.T) {
 }
 
 func mustParseCoins(s string) sdk.Coins {
-	coins, err := sdk.ParseCoins(s)
+	coins, err := sdk.ParseCoinsNormalized(s)
 	if err != nil {
 		panic(err)
 	}