Technical Writing entry in groups does not display channel information
## Problem description: Pre-migration, the [Product sections, stages, groups, and categories](https://handbook.gitlab.com/handbook/product/categories/) page displayed the content of `tech_writer` from the https://gitlab.com/gitlab-com/www-gitlab-com/blob/master/data/stages.yml file. The `tech_writer` entry can contain the name of one or two named technical writers, or it contains `"#docs Slack channel"` . Post-migration, the [Product sections, stages, groups, and categories](https://handbook.gitlab.com/handbook/product/categories/) page only displays content in the Technical Writing row of the group tables when there is a name of a technical writer in the `tech_writer` entry of the https://gitlab.com/gitlab-com/www-gitlab-com/blob/master/data/stages.yml file. It seems that it ignores the `"#docs Slack channel"` entry. This results in confusion for groups when they are trying to understand who to assign Technical Writing MRs to. Related [Slack thread discussion.](https://gitlab.slack.com/archives/C81PT2ALD/p1705406116629909) ## Expected behavior: The group tables show the `"#docs Slack channel"` entry when it is present in the yml file. ## Examples: [Static Analysis](https://handbook.gitlab.com/handbook/product/categories/#static-analysis-group) is correct, it has an assigned Technical Writer, and Russell is displayed in the table: ![image (4).png](/uploads/e02406402d8ae89751037bac86831763/image__4_.png) [Vulnerability Research](https://handbook.gitlab.com/handbook/product/categories/#vulnerability-research-group) group uses the docs Slack channel for Technical Writing reviews. I was expecting to see a Technical Writing entry that says "docs Slack Channel", but there is no Technical Writing row where I am expecting to see it: https://gitlab.com/gitlab-com/www-gitlab-com/-/blob/5ffccc4473fa521c700dce555937e6595511eeba/data/stages.yml?page=3#L1243 ![image (5).png](/uploads/38909956e8af52c05dd324114a58f8fd/image__5_.png)
issue