Write changelog

Author: CBx0-dev

changelogs/v1.2.0.md

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+# v1.2.0
+
+This release primarily serves as a foundation for the upcoming server mode, bringing a few visual adjustments alongside
+significant internal preparation. Unlike the current standalone mode, the server mode will store metadata and profile
+data remotely rather than locally. This shift reduces local storage requirements (saving 1GB+ of space) in exchange for
+a minor increase in latency, while enabling seamless profile and watch history synchronization across multiple devices.
+
+## New features
+
+- Implement a new Profile Management system
+- Rework of the Preference view
+
+## Fixed
+
+- Performing security audits of project dependencies and updating them