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Feedback on Contract and application of Contract upgrades

What to do:

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What's changed:

• initial request, check whether totalAmount and fwAmount are greater than 0.
• When editing, fwAmount must be changed to 0 or more.
• FW name change to CT
• delete the editCheck Storage & edit requirement
• Storage name change nativeL1token to l1TON
• function name changed edit -> editFee
• fwAmount must also be included in the hash value. #29
• code more readable #33
• use else instead of else if #35
• rename functions #37
• delete the _approve #38
• delete the getEntherHash function #39
• change the load storage #40
• double check delete #42
• add onlyEOA #43
• delete the payable #44
• delete the require #46
• events indexed #48
• add reqruie #49