vim: Fix clipping when navigating over inlay hints (#22813)

This fixes the issue described in this comment:
https://github.com/zed-industries/zed/pull/22439#issuecomment-2563896422

Essentially, we'd clip in the wrong direction when there were multi-line
inlay hints.

It also fixes inline completions for non-Zeta-providers showing up in
normal mode.

Release Notes:

- N/A

crates/editor/src/editor.rs

@@ -258,7 +258,7 @@ pub fn render_parsed_markdown(
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub(crate) enum InlayId {
+pub enum InlayId {
     InlineCompletion(usize),
     Hint(usize),
 }
@@ -3592,7 +3592,7 @@ impl Editor {
         }
     }
 
-    fn splice_inlays(
+    pub fn splice_inlays(
         &self,
         to_remove: Vec<InlayId>,
         to_insert: Vec<Inlay>,
@@ -4883,7 +4883,7 @@ impl Editor {
         }
     }
 
-    fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
+    pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
         Some(self.inline_completion_provider.as_ref()?.provider.clone())
     }