feat: Rename "Auto-edits" to "Auto-edit"

- Update the feature name from "Auto-edits" to "Auto-edit" throughout the documentation
- Adjust the subtitle and description to reflect the singular "Auto-edit" name
- Update the section headings and references to use the singular "Auto-edit" terminology

Author: jdorfman

docs/cody/capabilities/auto-edit.mdx

@@ -1,10 +1,10 @@
-# Auto-edits
+# Auto-edit
 
-<p className="subtitle">Auto-edits suggests code changes by analyzing your cursor movements and typing. After you've made at least one character edit in your codebase, it begins proposing contextual modifications based on your cursor position and recent changes.</p>
+<p className="subtitle">Auto-edit suggests code changes by analyzing your cursor movements and typing. After you've made at least one character edit in your codebase, it begins proposing contextual modifications based on your cursor position and recent changes.</p>
 
-<Callout type="info">Auto-edits is currently in the Experimental stage for all Cody users. Enterprise users can also use this, but with limited support. If you have feedback or questions, please visit our [support forum](https://community.sourcegraph.com/).</Callout>
+<Callout type="info">Auto-edit is currently in the Experimental stage for all Cody users. Enterprise users can also use this, but with limited support. If you have feedback or questions, please visit our [support forum](https://community.sourcegraph.com/).</Callout>
 
-## Capabilities of auto-edits
+## Capabilities of auto-edit
 
 - Can automatically insert and delete text
 
@@ -16,15 +16,15 @@
 
 - Can propose similar changes across multiple locations based on recent edits
 
-## Enable auto-edits
+## Enabling auto-edit
 
-Auto-edits is available exclusively for Pro and Enterprise users during the experimental release phase. Eligible Pro users will be gradually enrolled in the feature and will receive an in-editor notification when access is granted.
+Auto-edit is available exclusively for Pro and Enterprise users during the experimental release phase. Eligible Pro users will be gradually enrolled in the feature and will receive an in-editor notification when access is granted.
 
-### Auto-edits access for Enterprise customers
+### Auto-edit access for Enterprise customers
 
 **TBD -- waiting for Aravind to provide the details.**
 
-## How do auto-edits work?
+## How does auto-edit work?
 
 The system detects potential changes based on:
 
@@ -36,7 +36,7 @@ The system detects potential changes based on:
 
 - Common refactoring patterns
 
-## Auto-edits vs. Autocomplete
+## Auto-edit vs. Autocomplete
 
 Autocomplete:
 
@@ -46,7 +46,7 @@ Autocomplete:
 
 - Suggests on every character typed
 
-Auto-edits:
+Auto-edit:
 
 - Can both insert and delete text
 
@@ -56,7 +56,7 @@ Auto-edits:
 
 - Can do everything autocomplete can do
 
-## Auto-edits use cases
+## Auto-edit use cases
 
 1. Function signature refactoring (adding error returns)