Add clip_to_line_end to display_map/snapshot and set it to ensure vim positioning in normal mode

Co-authored-by: Nathan Sobo <nathan@zed.dev>

crates/vim/src/vim_tests.rs

@@ -1,7 +1,7 @@
 use std::ops::Deref;
 
 use editor::{display_map::ToDisplayPoint, DisplayPoint};
-use gpui::{json::json, keymap::Keystroke, AppContext, ViewHandle};
+use gpui::{json::json, keymap::Keystroke, ViewHandle};
 use language::{Point, Selection};
 use workspace::{WorkspaceHandle, WorkspaceParams};