i18n: make localization context non-global

- Simplify Localization{Context,Manager} to just Localization
- Fixed a bunch of lifetime issueo
- Removed all Arcs and Locks
- Removed globals
  * widgets now need access to &mut Localization for i18n

Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck_columns/src/actionbar.rs

@@ -284,7 +284,7 @@ impl NewNotes {
         let timeline = if let Some(profile) = timeline_cache.get_mut(&self.id) {
             profile
         } else {
-            error!("NewNotes: could not get timeline for key {}", self.id);
+            error!("NewNotes: could not get timeline for key {:?}", self.id);
             return;
         };