pixel columns (#3052)

@ForLoveOfCats and I found a few speedups that make this acceptably fast
(able to update ~10k selections in <100ms), so the remaining work here
is to fix the tests, and then ship!

Release notes:
- Updated up/down to work based on pixel positions
([#1966](https://github.com/zed-industries/community/issues/1966))
([#759](https://github.com/zed-industries/community/issues/759))
- vim: Fixed off-by-one in visual block mode
([2123](https://github.com/zed-industries/community/issues/2123))

crates/vim/src/vim.rs

@@ -590,7 +590,7 @@ impl Setting for VimModeSetting {
 fn local_selections_changed(newest: Selection<usize>, cx: &mut WindowContext) {
     Vim::update(cx, |vim, cx| {
         if vim.enabled && vim.state().mode == Mode::Normal && !newest.is_empty() {
-            if matches!(newest.goal, SelectionGoal::ColumnRange { .. }) {
+            if matches!(newest.goal, SelectionGoal::HorizontalRange { .. }) {
                 vim.switch_mode(Mode::VisualBlock, false, cx);
             } else {
                 vim.switch_mode(Mode::Visual, false, cx)