refactor!: removed read options from download options

reading after downloading should be a separate thing handled by the client that uses libmangal

fix: remove empty description metadata check

fix: better checks for provider metadata

refactor!: tweak how Strict and SearchMetadata works

now strict means that if metadata is invalid, libmangal will exit with error and that search metadata will replace any metadata found even if the search result is nil (then only if strict is true, it will error out)

refactor!: logger params and change all messages to lowercase

chore: update series.json comic_image tag

this is not really necessary at the moment, but it's what the latest version of the schema defines

feat: make UserAgent and file/dir write modes configurable

feat!: provide more data for downloaded chapters

this is a bit of a breaking change due to the change of return type for the download chapter method

fix: downloading empty chapters (issue with the provided pages)

chore: go 1.22

removes workaround on for loops where the iteration variable memory address is the same through out the loop