Improve logic for obtaining surrounds range in Vim mode (#10938)

now correctly retrieves range in cases where escape characters are
present. Fixed #10827


Release Notes:

- vim: Fix logic for finding surrounding quotes to ignore escaped
characters (#10827)

crates/vim/Cargo.toml

@@ -23,6 +23,7 @@ collections.workspace = true
 command_palette_hooks.workspace = true
 editor.workspace = true
 gpui.workspace = true
+itertools.workspace = true
 language.workspace = true
 log.workspace = true
 nvim-rs = { git = "https://github.com/KillTheMule/nvim-rs", branch = "master", features = [