initial refactoring of (I)Staking and StakingStore #2057

Job	Run time
Build and test (Hardhat)	2m 8s
Build and test (Hardhat)	2m 8s
Build and test (Hardhat)	2m 8s
Build contracts (Foundry - default profile with optimizer)	1m 7s
Build contracts (Foundry - default profile with optimizer)	1m 7s
Build contracts (Foundry - default profile with optimizer)	1m 7s
Run tests (Foundry - ci profile)	4m 9s
Run tests (Foundry - ci profile)	4m 30s
Run tests (Foundry - ci profile)	4m 7s
Execute test deployment on local chain	1m 25s
Execute test deployment on local chain	1m 56s
Execute test deployment on local chain	1m 32s
Publish npm package to npmjs	0s
Publish npm package to npmjs	0s
Publish npm package to npmjs	0s
	27m 24s

Provide feedback