Use array instead of hashmap for ports in TOML config file

[NewBieCoderXD]

Is your feature request related to a problem? Please describe. The current implementation uses HashMap for ports in config with key being string (port number), and value being u16 (that is not used), and it makes config look rather weird

Describe the solution you'd like Change from toml table to array

Describe alternatives you've considered

Additional context Change from

[ports]
8080 = 1
3000 = 1

to

ports = [8080, 3000]