feat: underline selection

[kenny-not-dead]

close #xxx

I continued implementing text underlining, considering the possibility of installing different options for underlining, it seemed logical to me to have a drop-down list of possible options

If this implementation is suitable, I can add this in sheets

I hope you like this implementation, I personally like it =)

open demo -> try use underline

Screencast.from.2025-09-07.21-07-33.webm

Pull Request Checklist

• Related tickets or issues have been linked in the PR description (or missing issue).
• Naming convention is followed (do please check it especially when you created new plugins, commands and resources).
• Unit tests have been added for the changes (if applicable).
• Breaking changes have been documented (or no breaking changes introduced in this PR).

[github-actions]

View Deployment

📑 Demo (React@19)	Demo (React@16)	📚 Storybook
🔗 Preview link	🔗 Preview link	🔗 Preview link

[codecov]

Codecov Report

❌ Patch coverage is 16.00000% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 33.28%. Comparing base (6b7bef5) to head (e2b94c1).
⚠️ Report is 5 commits behind head on dev.

Files with missing lines	Patch %	Lines
packages/docs-ui/src/controllers/menu/menu.ts	0.00%	33 Missing ⚠️
...ocs-ui/src/components/underiline-picker/picker.tsx	25.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #5818      +/-   ##
==========================================
- Coverage   33.30%   33.28%   -0.02%     
==========================================
  Files        2761     2763       +2     
  Lines      144913   144959      +46     
  Branches    32345    32355      +10     
==========================================
- Hits        48265    48254      -11     
- Misses      96648    96705      +57     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[kenny-not-dead]

@jikkai
please clarify can i leave a TODO or should i delete it? i will probably add it myself, but a bit later. i would also like to clarify about the message from the bot about test coverage, i didn't see any tests on the menu here, similar to sheets

[jikkai]

Apologies for the late reply. I’ve been handling a few other priorities 🤧
Thank you, as always, for your continued support 🫶

From a review perspective your implementation looks perfectly fine. However, as it may relate to Univer Docs import/export, we’ll need a little extra time to review the implications :)

[kenny-not-dead]

@jikkai I understand you, I will wait for an answer on this issue =)

Considering that I also did import and export on my backend, I think it will not affect you for long, since your underscore types were initially well designed. I think the only issue is in supporting the necessary switch-case types

[kenny-not-dead]

@jikkai

I decided to expand on this PR. First, I decided to make it more similar to other dropdowns, as I hadn't previously realized that the hover value applies to the entire element. I also expanded dark theme support and added two type variants. Overall, I decided to make this component more similar to a table component.

[kenny-not-dead]

It's weird, this test used to work fine, but I don't think I added anything that would have broken it.

[jikkai]

It's weird, this test used to work fine, but I don't think I added anything that would have broken it.

This is an issue caused by pixel comparison. As long as the content in the examples of docs or sheets is modified, resulting in changes to the rendering of the visible area, this problem will be triggered.
This usually does not constitute a real issue, we will fix it after merging :)

[kenny-not-dead]

@jikkai

Thanks, then I'll wait for confirmation of this decision. I think it's gotten better after the last change. I also have a suggestion regarding underscores in tables, since Excel also supports double underscores.

[kenny-not-dead]

@VicKun4937
Please clarify if this PR is still relevant?

[kenny-not-dead]

I think this can be closed...