re-generate module configuration using latest generator

there have been some last-minute changes to the ui module template.
No bower components are required any longer, but a reference to the coreDir
is needed, like for Appsuite UI version 7.4 and before.

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After updating to the latest version of the shared grunt configuration, the latest changes to the less tasks can be used. In order to get the less files compiled to css, you need to specify a coreDir (either in `grunt/local.conf.json` or via command line, like `grunt --coreDir ../web/ui/build`).