### Steps to reproduce

###

####

1. Go to Administration > Times and Costs > Defaults > Costs tab

2. In both 'Currency' and 'Format of currency', add emojis

3. Save


### What is the buggy behaviour?

* Save is successful 


### What is the expected behaviour?

Begin of the insertion* Currency field:

* End of the insertion Begin of the deletion 1. End of the deletion Add caption Begin of the insertion"This is the name of the currency being used. For example: Euro, Dollar, Yen."

* Format of currency:

* Rename this "Unit of currency"

* Add caption: "This is the symbol that is displayed after the numerical value. We recommend using a standard three-letter ISO codes like EUR, USD or JPY)"


End of the insertion Begin of the deletion explaining what to do, TBD Parimal


End of the deletion ###

### Screenshots and other files

<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/919381/content">

### Environment information

**OpenProject version**

Core build

[eef7c5eccf63b767ec90e4cfac91aa5ce9ca2b62](https://qa.openproject-stage.com/external_redirect?url=https%3A%2F%2Fgithub.com%2Fopf%2Fopenproject%2Fcommits%2Feef7c5eccf63b767ec90e4cfac91aa5ce9ca2b62)

Product version

[ecfbdd2facf738f725a89cda20e6909aaa4b155f](https://qa.openproject-stage.com/external_redirect?url=https%3A%2F%2Fgithub.com%2Fopf%2Fsaas-openproject%2Fcommits%2Fecfbdd2facf738f725a89cda20e6909aaa4b155f)

Core version

OpenProject 17.2.0

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**Operating System**

* [x] Windows
* [ ] Mac OS X
* [ ] Mobile iOS
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