refactor: add comments to our temporary extractParams function

packages/playwright-ct-svelte/registerSource.mjs

@@ -38,6 +38,10 @@ function isObjectComponent(component) {
 function extractParams(component) {
   let {props, slots, on} = component;
 
+  // Svelte5 is dropping support for old slot implementation in
+  // exchange for prop based snippets. They have to be of certain type
+  // tho. To still support strings as slots for testing purposes we
+  // want to convert sting to Snippet.
   slots = Object.fromEntries(
     Object.entries(slots ?? {}).map(([key, snippet]) => {
       if(typeof snippet === "string") {
@@ -48,6 +52,9 @@ function extractParams(component) {
     })
   );
 
+  // To support current playwright ct "on" mounting API we want to go
+  // through all event names and change their names as they will be
+  // used as standard component properties
   on = Object.fromEntries(
     Object.entries(on ?? {}).map(([key, fn]) => {
       return [`on${key}`, fn]