Issue-379: Change clear-cache to clear-temp

[Edwin-Dijk]

Small change but decided I would get it done

[Edwin-Dijk]

Converted to draft quickly as the documentation also has to be updated
EDIT: now updated documentation aswell, @tpill90 let me know if the ClearCacheCommand class name needs changing, I personally would not do this as this is pretty much never seen by users?

[tpill90]

Personally I'd prefer to keep the class name matching what the actual command name is despite users never seeing it. I'd prefer this because it can help with understanding the codebase, especially for someone who is looking to contribute.

[Edwin-Dijk]

Apart from the 1 remark it looks to me (without compiling atm as I don't have the time, will tomorrow) as if all previous mentions to cached files are changed now, new sentences look understandable aswell!

[tpill90]

I think I'm overall happy with where we landed on this. Going to merge this in. Thanks for the help!