feat: make "create new node" description panel resizable (#1135)

[joey-wheeler99]

Implements feature request from #1135

Summary by CodeRabbit

• UI Improvements
  • Improved the Create dialog layout by reorganizing the Favorites and Recent sections into a clearer left-side arrangement.
  • Updated the right side to better separate search/matches from the description area for a more readable, focused workflow.
  • Refined spacing and sizing of the description help content to improve alignment and overall visual consistency.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📥 Commits

Reviewing files that changed from the base of the PR and between 11a6eea and 99319fa.

📒 Files selected for processing (1)

• editor/gui/create_dialog.cpp

🚧 Files skipped from review as they are similar to previous changes (1)

• editor/gui/create_dialog.cpp

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Walkthrough

CreateDialog now uses dedicated split containers for Favorites and Recent, and for the search/matches and description sections.

Changes

Create dialog layout

Layer / File(s)	Summary
Reorganize dialog containers editor/gui/create_dialog.cpp	Adds split-container includes, attaches Favorites and Recent to left_vsc, and separates search/matches and description into sibling containers under right_vsc; help_bit moves into desc_vb.

Estimated code review effort: 2 (Simple) | ~10 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely identifies the main change: making the Create New Node description panel resizable.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@editor/gui/create_dialog.cpp`:
- Around line 939-943: Update the description UI setup around help_bit and
desc_vb so the content expands with the splitter: set help_bit’s vertical size
flags to Control::SIZE_EXPAND_FILL and pass true as the expandable argument to
desc_vb->add_margin_child. Preserve the existing label and sizing configuration.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 4bad883e-1ac4-4798-a316-fe9dfd5ae109

📥 Commits

Reviewing files that changed from the base of the PR and between 9fe4edb and ead75a1.

📒 Files selected for processing (1)

• editor/gui/create_dialog.cpp

[joey-wheeler99]

I'm inspecting whyEditorHelpBitnot following the size of its parent.

[joey-wheeler99]

The reasons why description panel was not resizable were:

• It's not a child of any split container.
• The vertical flag of Its content's RichTextLabel which lives inside EditorHelpBitwas not set to expand fill.

Solution:

• I added the description panel to a VSplitContainer.
• I set the vertical flag of content's RichTextLabel to expand fill. There are two choices to set this flag. Either do it in the user of EditorHelpBit or in the EditorHelpBit itself. I tried to avoid changing the default behaviour of content's RichTextLabel inEditorHelpBit class. I'm afraid of other classes use it and want it in the original flag.

[JoltedJon]

@coderabbitai full review

[coderabbitai]

✅ Action performed

Full review finished.

[JoltedJon]

Great change! This bugged me quite a bit and I remember seeing this issue a couple months ago. Glad to see someone implemented it.
Tested and works great

[VictorSohier]

LGTM

[JoltedJon]

@joey-wheeler99 Could you please run pre-commit run --all-files then commit the fixes when you get the chance to fix the style issues you have?
You can see the failing job here https://github.com/Redot-Engine/redot-engine/actions/runs/30683986006/job/91377146897?pr=1331

If you have any issues please let me know on discord

[Shakai-Dev]

LGTM

[joey-wheeler99]

Fix formatting

[Shakai-Dev]

LGTM