refactor: use jiff instead of chrono

Cargo.lock

@@ -953,7 +953,6 @@ dependencies = [
  "iana-time-zone",
  "js-sys",
  "num-traits",
- "pure-rust-locales",
  "serde",
  "wasm-bindgen",
  "windows-link 0.2.1",
@@ -1358,7 +1357,6 @@ version = "1.0.8"
 dependencies = [
  "anyhow",
  "bzip2",
- "chrono",
  "compio",
  "cosmic-client-toolkit",
  "cosmic-mime-apps",
@@ -1376,6 +1374,8 @@ dependencies = [
  "icu",
  "ignore",
  "image",
+ "jiff",
+ "jiff-icu",
  "jxl-oxide",
  "libc",
  "libcosmic",
@@ -3893,6 +3893,17 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "jiff-icu"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e67c2beaae8b10a82d849b9aabb698a43a682f32b17bcdc035d5ecadb44d646"
+dependencies = [
+ "icu_calendar",
+ "icu_time",
+ "jiff",
+]
+
 [[package]]
 name = "jiff-static"
 version = "0.2.23"
@@ -5691,12 +5702,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "pure-rust-locales"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "869675ad2d7541aea90c6d88c81f46a7f4ea9af8cd0395d38f11a95126998a0d"
-
 [[package]]
 name = "pxfm"
 version = "0.1.28"