feat(settings): add time format preference

public/locales/en.json

@@ -607,6 +607,9 @@
     "dateFormatLabel": "Preferred date format",
     "dateFormatHint": "Choose how dates are displayed throughout the app.",
     "dateFormatSavedToast": "Date format saved.",
+    "timeFormatLabel": "Time format",
+    "timeFormatHours": "hours",
+    "timeFormatSavedToast": "Time format saved.",
     "themeSystem": "System",
     "themeSysLabel": "Use system setting",
     "themeLight": "Light",
@@ -1019,4 +1022,4 @@
     "dropzoneHint": "Drag a file into this area, or use the file picker.",
     "selectedFileLabel": "Selected: {{name}}"
   }
-}
+}