Replace htmlescape with v_htmlescape (#11572)

# Description

`htmlescape` is unmaintained: https://crates.io/crates/htmlescape

while `v_htmlescape` is: https://crates.io/crates/v_htmlescape

and is used by two popular crates (`actix-files` and `minijinja`)

Let's use this instead - I'm packaging `nu` in Fedora and there is
understandable reluctance in bringing in an unmaintained crate if we can
avoid it.

# User-Facing Changes
Should not be any; drop-in replacement

# Tests + Formatting
Tested using:
- `cargo build` in the root folder (needed by some `nu-command` tests)
- `cargo test --features sqlite` in `crates/nu-command`
(`tests/commands/database/into_sqlite.rs` needs `rusqlite`)
- `cargo test` in `crates/nu-cmd-extra`

# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
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N/A

Signed-off-by: Michel Lind <salimma@fedoraproject.org>

crates/nu-command/src/formats/to/md.rs

@@ -138,7 +138,7 @@ fn collect_headers(headers: &[String]) -> (Vec<String>, Vec<usize>) {
 
     if !headers.is_empty() && (headers.len() > 1 || !headers[0].is_empty()) {
         for header in headers {
-            let escaped_header_string = htmlescape::encode_minimal(header);
+            let escaped_header_string = v_htmlescape::escape(header).to_string();
             column_widths.push(escaped_header_string.len());
             escaped_headers.push(escaped_header_string);
         }
@@ -179,7 +179,8 @@ fn table(input: PipelineData, pretty: bool, config: &Config) -> String {
                 }
             }
             p => {
-                let value_string = htmlescape::encode_minimal(&p.into_abbreviated_string(config));
+                let value_string =
+                    v_htmlescape::escape(&p.into_abbreviated_string(config)).to_string();
                 escaped_row.push(value_string);
             }
         }