Refactor versioning

[Dr-Electron]

Description of change

Refactored versioning.

• Removed defaultVersion. Version are now sorted by order and badge. The fist version of a badge in the list will be the main version
• Create iota/shimmer redirects for the corresponding main versions

Should be merged after #1226

Links to any relevant issues

Fixes #1204 and #1203

Type of change

• Enhancement (a non-breaking change which adds functionality)

Change checklist

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own changes
• I have made sure that added/changed links still work
• I have commented my code, particularly in hard-to-understand areas

[lucas-tortora]

I think it'll help users know which version to choose at a glance.

Just two notes on my end:

• If there is no version to choose from, as in the SDK, we should find a way to tell the users that it's for both.
• We should coordinate the deprecated tags as this looks kind of weird:

[Dr-Electron]

I think it'll help users know which version to choose at a glance.

Just two notes on my end:

• If there is no version to choose from, as in the SDK, we should find a way to tell the users that it's for both.
• We should coordinate the deprecated tags as this looks kind of weird:

I agree on the first point. But maybe that's something Begoña can help with while making the switcher nicer

Second point: I know, but not sure. As one tells you the whole library is deprecated and the other is only about a specific version. So not sure if we can just use version tags 🤔