Fix bug of workflow editor having smaller size (#2834)

## Purpose
Address #2810 #2809 
There was a bug with the current workflow editor workspace where after
page reload, the html element with id="workflow-editor" had an incorrect
size. This caused issues such as operators not being visible on the
lower part of the page and the minimap window changing size.
## Changes
Dispatch "resize" event when workflow editor is loaded to invoke all the
relevant resize handlers.
## Demo
Before (on texera.ics.uci.edu)

![workflow_editor_size_bug_master](https://github.com/user-attachments/assets/a3e5a50b-00ac-4c20-9fdf-afb256e0947c)
After

![workflow_editor_size_bug_branch](https://github.com/user-attachments/assets/7c51624d-bce5-4e6f-adb7-ce4ec54e3137)

core/gui/src/app/workspace/component/workflow-editor/workflow-editor.component.scss

@@ -1,9 +1,11 @@
 #workflow-editor-wrapper {
-  height: 100%;
+  height: 100vh;
+  width: 100vw;
 }
 
 #workflow-editor {
-  height: 100%;
+  height: 100vh;
+  width: 100vw;
 }
 
 ::ng-deep #workflow-editor .connection-wrap {

core/gui/src/styles.scss

@@ -72,3 +72,7 @@ hr {
 .ant-tabs-tabpane {
   padding-right: 24px;
 }
+
+body {
+  overflow: hidden;
+}