fix: [ENG-424] Backport Docker dropdown spacer fix to 7.2

[elibosley]

Summary

• Backports Joly0's Docker dropdown z-index/spacer fix to the 7.2 branch.
• Preserves Joly0 as the author on both cherry-picked commits from Joly0:patch-1.
• Adds the final spacer markup with docker-dropdown-spacer and aria-hidden="true".

Linear tracking

• 7.3 tracking ticket: ENG-424 https://linear.app/lime-technology/issue/ENG-424/backport-docker-dropdown-spacer-fix-for-731
• Note: this PR targets 7.2; the Linear ticket is for 7.3-side tracking/cross-linking only because 7.2 is not managed in Linear yet.

Credit

Original work by @Joly0 from https://github.com/Joly0/webgui/tree/patch-1.

Backported commits:

• d464bda - Fix dropdown z-index
• 6abd3fc - Update dropdown spacer element in docker.js

Validation

• node --check emhttp/plugins/dynamix.docker.manager/javascript/docker.js

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 9c2389fd-1bf8-4b7a-874c-29fe917c204e

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/backport-joly0-docker-dropdown-7.2

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[github-actions]

🔧 PR Test Plugin Available

A test plugin has been generated for this PR that includes the modified files.

Version: 2026.05.14.1608
Build: View Workflow Run

📥 Installation Instructions:

Install via Unraid Web UI:

1. Go to Plugins → Install Plugin
2. Copy and paste this URL:

https://preview.dl.unraid.net/pr-plugins/pr-2640/webgui-pr-2640.plg

3. Click Install

Alternative: Direct Download

• 📦 Download PLG
• 📦 Download TXZ

⚠️ Important Notes:

• Testing only: This plugin is for testing PR changes
• Backup included: Original files are automatically backed up
• Easy removal: Files are restored when plugin is removed
• Conflicts: Remove this plugin before installing production updates
• Post-merge behavior: This preview stays available after merge until preview storage expires or it is manually cleaned up

📝 Modified Files:

Click to expand file list

emhttp/plugins/dynamix.docker.manager/javascript/docker.js

🔄 To Remove:

Navigate to Plugins → Installed Plugins and remove webgui-pr-2640, or run:

plugin remove webgui-pr-2640

---

_{🤖 This comment is automatically generated and will be updated with each new push to this PR.}

[limetech]

LGTM

[github-actions]

🧹 PR Test Plugin Cleaned Up

The test plugin and associated files for this PR have been removed from the preview environment.

---

_{🤖 This comment is automatically generated when a PR is closed.}