Add 2 freetext field for the Plural Form plus if alternative word presented a plural field for the alternative word(s)

[roman-digitalfabrik]

Motivation

To complete the additional specifications of a Word we need a form field for a Plural form

Proposed Solution

1a) Need a field with at least 30 chars, evaluation not only numbers, no leading numbers, not mandatory needed Because we have sometimes alternative words we also need a adequate field (30 chars, self input check like 1a)

Alternatives

Additional Context

[MizukiTemma]

@roman-digitalfabrik I want to clarify some points.

What must be done is:

1. Add one new field for plural of the word (as specified in this issue )
2. Add one new field for plural to each alternativ word

[roman-digitalfabrik]

@MizukiTemma Yes, alltogether

1. Plural field for the main vocab
2. plural field for alternative words
3. article field for all plural forms (plural, plural undefined)