[BUG] Standardize meaning of "Title" in link dialog

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• I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• I have read the documentation and cannot find an answer.

Describe the bug
When a link is first created, the "Title" field indicates the anchor text. However, if the link is edited, the "Title" field will add a Markdown link-title while confusingly being populated by the anchor text.

Expected behavior
While I can't speak for all use cases, I suspect the Markdown link-title has little utility compared to the anchor text. I recommend making the anchor text modifiable with the current field (rename "Title" to "Link Text"/"Text"). Optionally, add a new and separate field for link-title that can be specified on link creation, but consider adding a flag to omit it.

Start by locating the link dialog and tracing how its Title field behaves when creating versus editing a link. Compare the anchor text with the Markdown link-title, then clarify whether the field should be renamed, whether a separate link-title field is needed, and what behavior should be considered complete.