Crowdin does not remove empty lines in nested JSON translation files.
Therefore, we use flattened translation keys instead. We have also
updated the key-loading logic to ensure that empty values are not
applied during translation.
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Signed-off-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: TheFox0x7 <thefox0x7@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>