[FEATURE] Add a tooltip to markdown links

[AlphaHot]

Is your feature request related to a problem? Please describe.

I tend to get annoyed when I can't see where a link is directing me, which means I have to keep checking the editor.

Describe the solution you'd like

A potential improvement could be a tooltip like the one found at https://html.spec.whatwg.org/multipage/dom.html#attr-title.

<a href="https://en.wikipedia.org/wiki/IPv6" title="https://en.wikipedia.org/wiki/IPv6"">…

This tooltip could display relevant information about the link, giving users a clearer idea of what to expect before clicking.

Describe alternatives you've considered

There are none.

Additional context

Output from the debug section in the settings dialog

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QOwnNotes Debug Information =========================== ## General Info **Version**: `24.7.3` **Build date**: `Jul 21 2024` **Build number**: `1114` **Platform**: `linux (xcb)` **Operating System**: `Ubuntu Core 22` **Current architecture**: `x86_64` **Qt Version (runtime)**: `5.15.3`

[pbek]

I guess you are talking about the preview... That would be nice, but I haven't seen support for that in https://github.com/mity/md4c. 😬

[AlphaHot]

@pbek that's what I meant: https://github.com/mity/md4c/blob/481fbfbdf72daab2912380d62bb5f2187d438408/src/md4c-html.c#L332-L335

I wanted the title attribute in the markdown links:

[**Playground**](https://test.org/ title="Tooltip")

Thank you for your attention. Sorry to disturb you.

[AlphaHot]

But why is the closing tag </a> of the link not highlighted in orange? A bug?

[pbek]

[Playground](https://test.org/ title="Tooltip")

This link doesn't seem to work with md4c. Or does it for you?

But why is the closing tag of the link not highlighted in orange? A bug?

There is no highlighting for HTML! The first part was just detected as link with <some link>.