Migrated the flatpak manifest file from JSON to YAML for better maintainability since YAML supports adding comments but JSON doen't.Also added necessary comments in the YAML manifest file and also made changes in the Flatpak Build guide to use the YAML file.
Migrated the flatpak manifest file from JSON to YAML for better maintainability since YAML supports adding comments but JSON doen't.Also added necessary comments in the YAML manifest file and also made changes in the Flatpak Build guide to use the YAML file.