Fix an interaction between vim's linewise yank and editor's paste (#33555)

Closes #32397

This PR fixes an issue when pasting text with the `editor::Paste`
command that was copied with `vim::Yank`'s linewise selection.

The change stops setting the `is_entire_line` setting when copying from
with vim linewise selections (<kbd>⇧v</kbd>) and motions (i.e.
<kbd>y2j</kbd>).

This flag is used when cutting/copying text without being selected (so,
place a cursor on line without selecting anything, and press
<kbd>⌘X</kbd>). When cutting/copying text in this manner, [the editor
pastes the text above the
cursor](36941253ee/crates/editor/src/editor.rs (L11936-L11947)).
However, this behaviour is not needed when cutting/copying with vim
motions.

Pasting with vim operations is not affected by this change. [They are
handled
elsewhere](36941253ee/crates/vim/src/normal/paste.rs)
and they don't consider the `is_entire_line` flag at all.

Note for maintainers: I'm not familiar with this codebase 🙃. This change
fixes the issue. I don't see anything breaking... but let me know if
it's not the case and a more thorough change is needed.

**Before:**

The text is copied above the first line, before the cursor.


https://github.com/user-attachments/assets/0c2f111a-5da0-4775-a7a0-2e4fb6f78bfc


**After:**
The text is copied at the cursor location:


https://github.com/user-attachments/assets/60a17985-fe8b-4149-a77b-d72bf531bf85


Release Notes:

- Fixed an issue when pasting text that was yanked with vim's linewise
selections.

crates/vim/src/normal/yank.rs

@@ -196,7 +196,7 @@ impl Vim {
                 }
                 clipboard_selections.push(ClipboardSelection {
                     len: text.len() - initial_len,
-                    is_entire_line: kind.linewise(),
+                    is_entire_line: false,
                     first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
                 });
             }