Add RTD docs redirects following next release

[stichbury]

Description

Once latest becomes stable we need to add the following redirects:

API docs changes

We can't add redirects for every page but makes sense to change the top level:

• https://docs.kedro.org/en/stable/kedro.html --> https://docs.kedro.org/en/stable/api/kedro.html

From Heap, the most popular API pages

• /en/stable/kedro.io.DataCatalog.html --> /en/stable/api/kedro.io.DataCatalog.html
• /en/stable/kedro.framework.session.session.KedroSession.html --> /en/stable/api/kedro.framework.session.session.KedroSession.html
• /en/stable/kedro.framework.context.KedroContext.html --> /en/stable/api/kedro.framework.context.KedroContext.html
• /en/stable/kedro.pipeline.html --> /en/stable/api/kedro.pipeline.html
• /en/stable/kedro.config.OmegaConfigLoader.html --> /en/stable/api/kedro.config.OmegaConfigLoader.html
• /en/stable/kedro.pipeline.node.html --> /en/stable/api/kedro.pipeline.node.html
• /en/stable/kedro.io.AbstractDataset.html --> /en/stable/api/kedro.io.AbstractDataset.html
• /en/stable/kedro.pipeline.Pipeline.html --> /en/stable/api/kedro.pipeline.Pipeline.html
• /en/stable/kedro.pipeline.node.Node.html --> /en/stable/api/kedro.pipeline.node.Node.html
• /en/stable/kedro.framework.hooks.html --> /en/stable/api/kedro.framework.hooks.html
• /en/stable/kedro.framework.hooks.specs.PipelineSpecs.html --> /en/stable/api/kedro.framework.hooks.specs.PipelineSpecs.html
• /en/stable/kedro.framework.hooks.specs.html --> /en/stable/api/kedro.framework.hooks.specs.html

Other docs page changes

To come as needed

[astrojuanlu]

Thanks for pulling the most popular ones 👍🏽 Looks sensible enough. Our redirect debt is already quite grim...

[astrojuanlu]

Prioritising this as "high" directly, since it's affected by the release timing

[stichbury]

Our redirect debt is already quite grim...

I consolidated a load recently but it is still painfully bad. Maybe remove the URLs with numbers since it's been a while and only the 0.17.7 release uses them.

It's a shame we can't see from Heap and/or RTD who is hitting pages from redirects, and what those redirects are.

[astrojuanlu]

Done!