added support for initializing from execution

ccp/js/executionformcontroller.js

@@ -16,14 +16,18 @@ class CCPExecutionForm extends HTMLElement{
     
     this.connectNewExecutionRequest()
     
+    this.render()
+
     const params = new URLSearchParams(window.location.search)
-    if(params.get('method')){
+    if(params.get('execution')){
+      const execution = { id : params.get('execution') }
+      this.prepareFromExecution(execution) 
+    } else if(params.get('method')){
       this.#method = params.get('method')
       this.loadMethod()
+    } else {
+      this.showMethod()
     }
-    
-    this.render()
-    this.showMethod()
   }
   
   static get observedAttributes() {