The imports are meant to make your code a little more easier to use. Once compiled, all the code comes into a single file anyway. If you manually add all your code into a single file, you don’t need to add the imports. Its just a standard way of development that developers follow.
Looks like your contract is verified on bscScan right now. Is there anything else you’d like to clear up or does everything work good?
Looking forward to your response!