docs: add developers-landing page to sidebars

[tisonkun]

This is a followup to #17284.

cc @DaveDuggins @Anonymitaet @momo-jun @urfreespace

Documentation

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• doc-not-needed
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• doc
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Matching PR in forked repository

docs only change

[tisonkun]

Currently, this page is dangling:

[DaveDuggins]

Hi tison! This page does not require sidebar links. The landing pages I'll be creating PRs for over the next few days will not require a sidebar link. These pages serve only as a connection point between the content blocks on the main documentation page and the topics. No additional navigation is needed.

[tisonkun]

@DaveDuggins this patch doesn't add a new entry but reuse the "development" entry.

If we don't add it to the sidebars, how can users find the page? Only by entering the exact url? It seems unreasonable.

[tisonkun]

@DaveDuggins OK. I see the link from the original patch. Let me show you the result of this patch in preview later today.

[tisonkun]

cc @DaveDuggins

Current:

Screen.Recording.2022-09-22.at.09.24.43.mov

Preview with this patch:

Screen.Recording.2022-09-22.at.09.26.32.mov

[tisonkun]

ping @DaveDuggins @Anonymitaet @momo-jun @urfreespace for another turn.

[DaveDuggins]

@DaveDuggins this patch doesn't add a new entry but reuse the "development" entry.

If we don't add it to the sidebars, how can users find the page? Only by entering the exact url? It seems unreasonable.

No, by clicking the appropriate topic box on the main documentation page. These landing pages only serve as a bridge to the related articles linked from the content blocks on the main doc page.

[tisonkun]

@DaveDuggins Yep. Please read the following comment for preview. This change won't break existing things and as an improvement.

[tisonkun]

@DaveDuggins @momo-jun @urfreespace @Anonymitaet shall we merge this patch now?