Show emoji autocomplete only after the user has type 2 characters

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/autocomplete/EmojiProvider.tsx

@@ -91,7 +91,8 @@ export default class EmojiProvider extends AutocompleteProvider {
 
         let completions = [];
         const { command, range } = this.getCurrentCommand(query, selection);
-        if (command) {
+
+        if (command && command[0].length > 2) {
             const matchedString = command[0];
             completions = this.matcher.match(matchedString, limit);