Add list of tags next to each method

1. I tag a given method "/entityA/create" with different labels "EntityA", "upsert", "sync", "use_caseA", "stable". ...
2. Redoc generates the HTML properly detecting all the labels.
3. When clicking on the "EntityA" tag, the left panel in the generated HTML opens the list of related methods, for example "/entityA/create", "/entityA/query", "/entityA/delete", ...
4. I click on "/entityA/create" and the page scrolls down to the method. I can see all the related information except the full list of initial labels (step 1).

Additional context
IMHO, adding that list is quite useful. In the previous example the tag list will quickly feedback users with "lot of context" related to the "/entityA/create" method. (It's a sync operation, it belong to use case A, it belong to an stable. With a little bit of care using tags with the format topic.subtopic can provide a lot of information. See this example for a "plain text" document following this topic.subtopic tagging pattern (click on the "four dots" to see and play with tags).

Start by reproducing the generated HTML flow described in the issue: select a tag in the left panel, open a related method, and inspect its method detail. Trace the rendering entry point for that detail and compare it with the labels shown in the left-panel method list; done means the full initial label list is visible beside each method.