Add underline styling to video titles for accessibility (#26934)
Video titles in the home page Videos section lacked visual link
affordances (underline), making them indistinguishable from plain text
for low vision users.
### Changes
- Added `underline` class to video title links in `videogallery.svelte`
- Links maintain default text color while providing clear visual
affordance through underline
**Before:**
```svelte
<a class="text-xl" href={video.link}>
```
**After:**
```svelte
<a class="text-xl underline" href={video.link}>
```
### Screenshot
<img
src="https://github.com/user-attachments/assets/3dc58676-0bed-4132-8f53-6a67dd4b46f2">
Links now display with underline, meeting WCAG requirements for visual
link identification.
<!-- START COPILOT ORIGINAL PROMPT -->
<details>
<summary>Original prompt</summary>
>
> ----
>
> *This section details on the original issue you should resolve*
>
> <issue_title>"What is ONNX Runtime (ORT)?,Converting Models to ONNX
Format, Optimize Training and Inference with ONNX Runtime
(ACPT/DeepSpeed)" links visually not appearing as links: A11y__ONNX
Runtime & Ecosystem_Runtime_Usable</issue_title>
> <issue_description>#A11yTCS #A11yUsable #DesktopWeb #Chrome #Win11
#BM_ONNX Runtime & Ecosystem_Web_June2025; #ONNX Runtime & Ecosystem;
#Benchmark #Rev:shta #rev:moda
>
> ### Environment Details:
> Application Name: WCP URLs - ONNX Runtime
> URL: https://onnxruntime.ai/
> Chrome Version: 120.0.6099.130
> OS: Windows 11 version 23H2
>
>
> ### Steps to Reproduce
>
> 1. Hit the URL "https://onnxruntime.ai/".
> 2. "ONNX Runtime" home page appeared.
> 3. Tab till What is ONNX Runtime (ORT)?,Converting Models to ONNX
Format, Optimize Training and Inference with ONNX Runtime
(ACPT/DeepSpeed) links under videos section.
> 5. Now, observe that What is ONNX Runtime (ORT)?,Converting Models to
ONNX Format, Optimize Training and Inference with ONNX Runtime
(ACPT/DeepSpeed) links are not visually appearing as links.
> ### Actual Results:
> "What is ONNX Runtime (ORT)?,Converting Models to ONNX Format,
Optimize Training and Inference with ONNX Runtime (ACPT/DeepSpeed)"
links are not visually appearing as links.
> ### Expected Results:
> "What is ONNX Runtime (ORT)?,Converting Models to ONNX Format,
Optimize Training and Inference with ONNX Runtime (ACPT/DeepSpeed)"
links should be visually appearing as links. color and underline should
be provided for the links.
> ### User Impact:
> Low vision users may not be able to differentiate the links if there
is no color or underline is provided.
> ###Attachment:
>
> <img width="955" alt="Image"
src="https://github.com/user-attachments/assets/5df09a4e-b9d6-4d32-9754-93148a7577fe"
/></issue_description>
>
> <agent_instructions>should be an easy fix.</agent_instructions>
>
> ## Comments on the Issue (you are @copilot in this section)
>
> <comments>
> </comments>
>
</details>
<!-- START COPILOT CODING AGENT SUFFIX -->
- Fixes microsoft/onnxruntime#24965
<!-- START COPILOT CODING AGENT TIPS -->
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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: MaanavD <24942306+MaanavD@users.noreply.github.com>