removed 'private' option, classes cannot be private lol

Author: somedeveloper00

src/model.ts

@@ -4,7 +4,7 @@ export const DEST_PATH = 'snippets/snippets.json';
 export const ISSUES_URL = 'https://github.com/kleber-swf/vscode-unity-code-snippets/issues';
 
 export type IndentationStyle = 'kr' | 'allman';
-export type ClassAccessibilityLevel = 'public' |'private' | 'none';
+export type ClassAccessibilityLevel = 'public' |'internal' | 'none';
 
 export type ReplaceType = 'PRIVATE' | 'CLASS_ACCESSIBILITY_LEVEL' | 'LINE_BREAK' | 'TAB';
 export type Replaces = Record<ReplaceType, string>;