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>

Cargo.lock

@@ -4339,6 +4339,12 @@ dependencies = [
  "toml_edit",
 ]
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.20+deprecated"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.95"
@@ -6064,6 +6070,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a28ba52c9b05311f4f6e62d5d9d46f094bd6e84cb8df7b3ef952748d752a7d05"
 dependencies = [
  "unic-langid-impl",
+ "unic-langid-macros",
 ]
 
 [[package]]
@@ -6075,6 +6082,30 @@ dependencies = [
  "tinystr",
 ]
 
+[[package]]
+name = "unic-langid-macros"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5957eb82e346d7add14182a3315a7e298f04e1ba4baac36f7f0dbfedba5fc25"
+dependencies = [
+ "proc-macro-hack",
+ "tinystr",
+ "unic-langid-impl",
+ "unic-langid-macros-impl",
+]
+
+[[package]]
+name = "unic-langid-macros-impl"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1249a628de3ad34b821ecb1001355bca3940bcb2f88558f1a8bd82e977f75b5"
+dependencies = [
+ "proc-macro-hack",
+ "quote",
+ "syn 2.0.104",
+ "unic-langid-impl",
+]
+
 [[package]]
 name = "unicase"
 version = "2.8.1"