Merge pull request #839 from Shopify/jm/add_completions_trigger

[LiquidDoc] Show annotation completion suggestions when `@` is typed

Author: jamesmengo

.changeset/funny-experts-vanish.md

@@ -0,0 +1,5 @@
+---
+'@shopify/theme-language-server-common': minor
+---
+
+Display completion suggestions while typing for liquiddoc annotations

packages/theme-language-server-common/src/server/startServer.ts

@@ -320,7 +320,7 @@ export function startServer(
           codeActionKinds: [...CodeActionKinds],
         },
         completionProvider: {
-          triggerCharacters: ['.', '{{ ', '{% ', '<', '/', '[', '"', "'", ':'],
+          triggerCharacters: ['.', '{{ ', '{% ', '<', '/', '[', '"', "'", ':', '@'],
         },
         documentOnTypeFormattingProvider: {
           firstTriggerCharacter: ' ',