Replace hardcoded redirect rule by page-specific alias

_Originally posted by @yurishkuro in https://github.com/jaegertracing/documentation/pull/917#discussion_r2126704933_:

> ```liquid
> {{ $v2Pages := slice "apis" "architecture" "deployment" "faq" "features" "frontend-ui" "getting-started" "monitoring" "operator" "performance-tuning" "sampling" "security" "troubleshooting" "windows" -}}
> {{ range $v2Pages }}
> /docs/{{ . }} /docs/{{ $latest }}/{{ . }}
> {{ end -}}
> ```
>
> This seems pretty fragile, can we not read the file names for the dir instead of hardcoding them?

@chalin responded:

> Yes, good point. Note that this is a temporary solution, one that is meant to be equivalent to what was there before. I.e., it is no more fragile than before.

This issue is meant to track the permanent (Docsy-based) solution for the various pages.

### Tasks

- [x] #930
- [x] #932
- [x] #933
- [ ] ...

Start with the Liquid redirect rule shown in the issue and review the linked work in #930, #932, and #933. Replace the hardcoded page list with the permanent Docsy-based, page-specific alias approach; done means the various pages redirect correctly without maintaining a hardcoded list.

Written by the indexing model from the issue text.