Translation: Validate, flag and filter out strings where the template string variable is changed

[samshara]

Tasks

• [ ] Validate, flag, and filter out strings where the template string variable is changed
• [ ] Add filter to filter out erroneous strings in Admin Panel
• [ ] Warn users of erroneous strings during import

Orginal string: Cycle {cycle}: {countryName} PER process Erroneous strings : Ciclo {ciclo}: proceso PER de {nombrePaís} Correct strings: Ciclo {cycle}: proceso PER de {countryName}

feedback from @steph-gm:

Staging - General Country pages: National Society Overview - Capacity • Cycle number or description is not appearing in the boxes in Spanish

Originally posted by @tovari in https://github.com/IFRCGo/go-web-app/issues/340#issuecomment-2020753197

[thenav56]

@tnagorra to provide regex for validation

[tnagorra]

We can use something like this

'My {sub} is {obj}'.match(/\{(\w+)\}/g)