remove leaky text in uploadMarker

[itsrealfake]

Description

closes #1096

Screenshots

Additional Context

Checklist

Are your changes backwards compatible? Please answer below:

Did you QA this? Could we deploy this straight to production? Please answer below:

For frontend changes: Tested on mobile? Please answer below:

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[coderabbitai[bot]]

Walkthrough

## Walkthrough The change addresses a privacy concern by modifying how image alt attributes are handled during the image upload process in a markdown input component. Instead of using the original filename, which could leak sensitive data, the alt text is now left blank, enhancing user privacy. ## Changes | File Path | Change Summary | |-----------|----------------| | `components/form.js` | Updated the replacement text in the `MarkdownInput` function from `![Uploading ${name}…]()` to ``. | ## Assessment against linked issues | Objective | Addressed | Explanation | |-----------|-----------|-------------| | Overwrite filename with random string or delete string for image alt attribute (#1096) | ❌ | The change does not implement a random string or deletion; it leaves the alt attribute blank. | | Ensure unique identifiers are maintained for `onSuccess` callback functionality (#1096) | ✅ | | | Avoid user confusion by changing file names on upload (#1096) | ✅ | | | Parse for image alt attributes on client or server to identify which should be replaced (#1096) | ❓ | The change does not explicitly mention parsing alt attributes to differentiate between user-provided and system-replaced ones. | | Limit replacement to images from specific domains (#1096) | ❓ | The provided change summary does not clarify whether the replacement is limited to images from `m.stacker.news`. |

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Recent Review Details

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Commits

Files that changed from the base of the PR and between df631878e0e586b83e9fd98be1854f2ec59b96d7 and 9c32d0fbf0569fce439d9ee28fcc0954807d28c7.

Files selected for processing (1)

* components/form.js (1 hunks)

Files skipped from review due to trivial changes (1)

* components/form.js

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[itsrealfake]

Works great!

Swag. How does this get merged?

[huumn]

I merge it when I'm in a reviewing/merging/award data entry mood.

[itsrealfake]

while writing a comment which took advantage of this, i had a thought about a feature

when the user uploads their first image, a UX like

1. Logged user uploads from clipboard w/ e.g. CMD+V

2. Popup to save preference option

"we automatically strip EXIF data & file names when you upload an image.

would you like stacker.news to leave a link when paste images into a comment box?

[ ] do nothing [ ] show you an option dialogue to create a link to source

You can change this later in preferences.

3. Show a dialogue to optionally leave a link to source w/ pasted image.

Would you like to add a link to the image source? You can change this option in user preferences.

[ekzyis]

What do you mean with "link" here?

would you like stacker.news to leave a link when paste images into a comment box?