[2.3.0] Checkmk Werk 16625 created: service_discovery/bulk_discovery: reformulate documentation for mode option

[//]: # (werk v2) # service_discovery/bulk_discovery: reformulate documentation for mode option key | value ---------- | --- date | 2024-03-12T10:32:47+00:00 version | 2.3.0b3 class | fix edition | cre component | rest-api level | 1 compatible | yes Previously, the single service discovery and the bulk discovery shared the same documentation for the mode field. This covers the use cases for the bulk discovery to a certain degree. This werk fixes this. In addition, this werk also resolves previously non working modes 'fix_all' and 'tabula_rasa'.