[IMP] devtools: patch app methods only when needed

This commit changes the moment when all methods that need patching
to handle events are actually patched: the complete method of RootFiber
is now patched at devtools startup (when the tab owl tab is opened) and
every other method is patched at first activation of the event recording
functionality. This makes sure that the devtools will have no impact on
performance whatsoever when they are not directly put in use.

tools/devtools/src/devtools_app/store/store.js

@@ -410,12 +410,7 @@ export const store = reactive({
         if (!scriptsLoaded) {
           await loadScripts(frame);
         }
-        evalInWindow(
-          `__OWL__DEVTOOLS_GLOBAL_HOOK__.devtoolsId = ${
-            store.devtoolsId
-          }; __OWL__DEVTOOLS_GLOBAL_HOOK__.frame = ${JSON.stringify(frame)};`,
-          frame
-        );
+        evalFunctionInWindow("initDevtools", [frame], frame);
         if (!this.frameUrls.includes(frame)) {
           this.frameUrls = [...this.frameUrls, frame];
         }
@@ -635,7 +630,7 @@ init();
 async function init() {
   store.devtoolsId = await getTabURL();
 
-  evalInWindow("__OWL__DEVTOOLS_GLOBAL_HOOK__.devtoolsId = " + store.devtoolsId + ";");
+  evalFunctionInWindow("initDevtools", []);
 
   await loadSettings();
 
@@ -677,7 +672,7 @@ browserInstance.runtime.onConnect.addListener((port) => {
       if (msg.type === "Reload") {
         store.owlStatus = await evalInWindow("window.__OWL__DEVTOOLS_GLOBAL_HOOK__ !== undefined;");
         if (store.owlStatus) {
-          evalInWindow("__OWL__DEVTOOLS_GLOBAL_HOOK__.devtoolsId = " + store.devtoolsId + ";");
+          evalFunctionInWindow("initDevtools", []);
           await store.resetData();
         }
       }