Fixed Lambda config window resize (#3737)

* Fixed Lambda config window resize

* Added changeLog

Author: vchikoti1998

.changes/next-release/bugfix-02fad4f1-0508-46b6-bd75-d3b0945e083a.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Fix AWS Lambda configuration window resize (#3657)"
+}

jetbrains-core/src/software/aws/toolkits/jetbrains/services/lambda/execution/LambdaInputPanel.java

@@ -56,6 +56,8 @@ public class LambdaInputPanel {
     EditorTextField inputText;
     JPanel panel;
 
+    private final int setWidthSize = 20;
+
     public LambdaInputPanel(Project project) {
         this.project = project;
 
@@ -136,6 +138,7 @@ public LambdaInputPanel(Project project) {
 
     private void createUIComponents() {
         inputText = EditorTextFieldProvider.getInstance().getEditorField(JsonLanguage.INSTANCE, project, Collections.emptyList());
+        inputText.setPreferredWidth(setWidthSize);
 
         eventComboBoxModel = new SortedComboBoxModel<>(Comparator.comparing(LambdaSampleEvent::getName));