features: added an trainer model and mini dataset for NLP to store and perform better redaction in future
features (2): authentication features to check 4 slight hints of forgery through sudden gradation change in image desn. , dig. checksum , etc.
mod: slightly better ui/ux with newer dynamic (right) sidebar for even more granular redaction control.

Previously, the code was built in an non open-source control software (offline build). Hence, the semantic versioning has skipped right to v4.1