fix: avoid default limit 50 on catalog creation

[ndr-brt]

What this PR changes/adds

Avoids the default limit of 50 when requesting catalog in certain circumstances.
To achieve that:

• always set limit by default at the asset count retrieved by the countAssets call in the ContractOfferResolverImpl.queryContractOffers method.
• ignore offset and limit in the countAssets implementation, as it should count items filtering by the query, but not restricting the output with a range.

Why it does that

Fix bug

Further notes

• could we remove set the QuerySpec.limit's default value to Integer.MAX_VALUE? As the "security issue" is already handled by QuerySpecDto.

Linked Issue(s)

Closes #2064

Checklist

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[paullatzelsperger]

LGTM