Fix typo: quote_ahead_fount_at -> quote_ahead_found_at (#9280)

Corrects a typo in the variable name used for tracking quote positions
in vim text object operations.

## Description
Fixes a typo: `quote_ahead_fount_at` → `quote_ahead_found_at` in
`crates/vim/src/text_objects/quote.rs`.

## Testing
- [x] No functional changes, purely a variable rename
- [x] Code compiles successfully

No new tests added as this is a simple variable rename with no
behavioral changes.

## Server API dependencies
- [x] N/A

## Agent Mode
- [ ] Warp Agent Mode

## Changelog Entries for Stable
N/A - Minor typo fix.

Co-authored-by: Aloke Desai <aloke.desai@gmail.com>

Author: filippostanghellini

crates/vim/src/text_objects/quote.rs

@@ -63,15 +63,15 @@ where
                 break;
             }
         }
-        let mut quote_ahead_fount_at = None;
+        let mut quote_ahead_found_at = None;
         for (i, c) in &mut forward_iter {
             if quote_type.is_char(c) {
-                quote_ahead_fount_at = Some(offset + i);
+                quote_ahead_found_at = Some(offset + i);
                 break;
             }
         }
 
-        match (quote_behind_found_at, quote_ahead_fount_at) {
+        match (quote_behind_found_at, quote_ahead_found_at) {
             // If there are quotes surrounding the cursor, take that range.
             (Some(start), Some(end)) => Some(start..end + 1),
             // If there is no quote before, but there _is_ one after, treat the one after as the