[PROD] PER typo "exits" should be "exists"

[nanometrenat]

Issue

Across the PER module, the wording "exits could be strengthened" shows in a number of places - but it should be "exists" not "exits".

I am not sure if changing this in the code is sufficient or if there are also changes that would need to be made under the hood in the database etc to ensure that everything stays aligned?

Steps to reproduce

Example page in staging: https://go-stage.ifrc.org/countries/19/ns-overview/per/160

Expected behaviour

Typo should be fixed

Impact

Cosmetic issue only - not affecting actual functionality

[szabozoltan69]

Changed on Admin on Staging and Prod, but will be delivered via migration also.