Create a discord API handler

[clement-pages]

Task description

Currently, discord API is directly called from multiple points in the source code. This could break the code in the case of discord upgrade , and makes it difficult to maintain. Thus, the aims of this task is to implement a module that will represent an interface betwwen the SunBot and discord API

Validation criteria

• : A first attempt to implement a discord API handler was done previously, but this implementation is not up to date with the current architecture and should be deleted
• : Implement a new module which handle sending to users and servers, handle an interaction or discord event... etc
• : Update the source code to use the new module (namely in SunController, weather_event module)

[clement-pages]

Currently neither necessary nor useful. The elements used are (a priori) not subject to change at the discord API level, and should not break the code. Any updates should also be fairly straightforward to implement.