The problems found on Legacy Dialogs are the next:
1. The modal can't be dragged
2. The button for extending and reduce the modal is doing nothing
3. The x for close the modal is showed twice
You can test it with dialogs showed on Vault module
[IMP] web_dialog_size: Migration to 16.0
[REM] Remove duplicate configuration readme file
[FIX] Make it work for normal dialogs also
[FIX] SelectCreateDialog
precommit
* [IMP] web_dialog_size: Put dialog size expanded by default
* [REM] web_popup_large: By duplication of the functionality
* [IMP] web_dialog_size: README and contributors
* [ADD] configuration parameter for default behavior
[FIX] return super's promise
[IMP] use fontawesome icons for buttons