Merge branch 'BlackDex-add-avatar-color-feature'

migrations/mysql/2023-01-11-205851_add_avatar_color/down.sql

migrations/mysql/2023-01-11-205851_add_avatar_color/up.sql

...ns/postgresql/2023-01-11-205851_add_avatar_color/down.sql

...ions/postgresql/2023-01-11-205851_add_avatar_color/up.sql

...ations/sqlite/2023-01-11-205851_add_avatar_color/down.sql

migrations/sqlite/2023-01-11-205851_add_avatar_color/up.sql

src/api/core/accounts.rs

src/db/models/user.rs

src/db/schemas/mysql/schema.rs

src/db/schemas/postgresql/schema.rs

src/db/schemas/sqlite/schema.rs

src/main.rs