Fixes all over code

[zinen]

Functional the same but here is a lot of tiny changes:

Fixes:

• Hostname not being called before wifi start
• transforming bytes to ASCII
• Rearranged defines at top due to wrong order

Formatting:

• Applied default formatting rules from Visual Studio Code (i.e. removed white spaces, separates // and text, fixed spacing of functions and more formatting)
• Corrected typos
• Rearranged code as C++ standard. Functions should be defined before being called
• Removed unused variables
• Removed telnet debug code (was not used)