Some UI gliches

[ymarcon]

As reported by Soshana.

• [x] Entering decimal numbers in firefox does not work
• [ ] Name uniqueness validation: todo
• [ ] Building elements: should be grouped by category, with filter in a typeahead?, sorted alphabetically (locale dependent)
• [x] Display addresses from Feature object in buildings table
• [x] Translate field labels

[ymarcon]

About decimals:

• related issue https://github.com/vuetifyjs/vuetify/issues/15688
• reproduce at https://play.vuetifyjs.com/#eNqlUtt...

[ymarcon]

About grouping selectable items:

• related discussion https://github.com/vuetifyjs/vuetify/discussions/15673
• working solution https://play.vuetifyjs.com/#eNqdVMtu2zAQ...