docs: update copyright year in LICENSE

Updated copyright year from 2024 to 2026 in LICENSE file.

Made the shepherd copyright section list explicitly what the "friends" are, i.e., list all the files this applies to.

Author: joanise

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018-2024 National Research Council Canada, Algonquian Dictionaries and Language Resources Project, David Huggins-Daines
+Copyright (c) 2018-2026 National Research Council Canada, Algonquian Dictionaries and Language Resources Project, David Huggins-Daines
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,7 +21,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
 
-packages/studio-web/src/app/shepherd.service.ts and friends:
+packages/studio-web/src/app/{shepherd.service.*, utils/dom.ts, utils/button.ts}:
 
 The MIT License (MIT)