refactor(output config): move to config crate

this allows the greeter to easily sync to the user config

src/backend/winit.rs

@@ -2,12 +2,13 @@
 
 use crate::{
     backend::render,
-    config::{OutputConfig, ScreenFilter},
+    config::ScreenFilter,
     shell::{Devices, SeatExt},
     state::{BackendData, Common},
     utils::prelude::*,
 };
 use anyhow::{anyhow, Context, Result};
+use cosmic_comp_config::output::{OutputConfig, TransformDef};
 use smithay::{
     backend::{
         drm::NodeType,
@@ -167,7 +168,7 @@ pub fn init_backend(
     output.user_data().insert_if_missing(|| {
         RefCell::new(OutputConfig {
             mode: ((size.w, size.h), None),
-            transform: Transform::Flipped180.into(),
+            transform: TransformDef::Flipped180,
             ..Default::default()
         })
     });