Fix brace expansion completion bug

Author: nikita-skobov

server/src/server.ts

@@ -388,7 +388,12 @@ export default class BashServer {
 
     if (word) {
       // Filter to only return suffixes of the current word
-      return allCompletions.filter(item => item.label.startsWith(word))
+      const validCompletions = allCompletions.filter(item => item.label.startsWith(word))
+      if (word === '{') {
+        // prevent a '{' from showing up in completions
+        // if user is trying to close a brace
+        return validCompletions.filter(item => item.label !== '{')
+      }
     }
 
     return allCompletions