Update dependency intl to ^0.19.0

Author: renovate[bot]

pubspec.yaml

@@ -29,7 +29,7 @@ dependencies:
   flutter_tabler_icons: ^1.7.0
   gtk: ^2.1.0
   handy_window: ^0.3.1
-  intl: ^0.18.0
+  intl: ^0.19.0
   media_kit: ^1.1.10
   media_kit_libs_video: ^1.0.4
   media_kit_video: ^1.2.4