Re-export basic text types from text and language crates

Also avoid production dependencies on fs and rope in collab

crates/editor/src/movement.rs

@@ -1,7 +1,6 @@
-use rope::point::Point;
-
 use super::{Bias, DisplayPoint, DisplaySnapshot, SelectionGoal, ToDisplayPoint};
 use crate::{char_kind, CharKind, ToPoint};
+use language::Point;
 use std::ops::Range;
 
 pub fn left(map: &DisplaySnapshot, mut point: DisplayPoint) -> DisplayPoint {
@@ -337,7 +336,6 @@ pub fn surrounding_word(map: &DisplaySnapshot, position: DisplayPoint) -> Range<
 mod tests {
     use super::*;
     use crate::{test::marked_display_snapshot, Buffer, DisplayMap, ExcerptRange, MultiBuffer};
-    use rope::point::Point;
     use settings::Settings;
 
     #[gpui::test]