Fix - being a word character for selections (#17171)

Co-Authored-By: Mikayla <mikayla@zed.dev>
Co-Authored-By: Nate <nate@zed.dev>

Closes #15606
Closes #13515

Release Notes:

- Fixes `-` being considered a word character for selections in some
languages

Co-authored-by: Mikayla <mikayla@zed.dev>
Co-authored-by: Nate <nate@zed.dev>

crates/editor/src/test/editor_lsp_test_context.rs

@@ -226,6 +226,7 @@ impl EditorLspTestContext {
                     ..Default::default()
                 },
                 block_comment: Some(("<!-- ".into(), " -->".into())),
+                word_characters: ['-'].into_iter().collect(),
                 ..Default::default()
             },
             Some(tree_sitter_html::language()),