refactor(api): Refactor onbehalfOf checks

Check the onBehalfOf once when a new PR is discovered if not matching

README.md

@@ -68,7 +68,7 @@ The GitHub token you provide is used by the dashboard but shared with nobody. Al
 Moreover, no third-party script are loaded by the page (mainly to avoid the risk of a compromised library) and all implemented scripts by this project are protected by an integrity hash and a strict Content Security Policy. 
 It means that the browser will not execute anything else than what is expected, decreasing the risk to have your GitHub token stolen by someone.   
 
-#### Generating the integrety hashes
+#### Generating the integrity hashes
 
 Here are the command used to generate the hashes:
 ```shell

docs/index.html

@@ -17,7 +17,7 @@
     <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Noto+Sans">
 
     <script type="text/javascript" src="./scripts/controls.js" integrity="sha384-h1acJr1fAELUSOVWsm0vhc53glFobYEmxKu/za/AdvYnnFiuMIUd6qm5IaREYbmN" defer></script>
-    <script type="text/javascript" src="./scripts/github.js" integrity="sha384-rB2dTGRPbyL6Bes4rQWASL0EcNQY1MFKLxyzrdM8XQIGg8bdd28AH5nzXpb0Z+yl" defer></script>
+    <script type="text/javascript" src="./scripts/github.js" integrity="sha384-Tb1oZVoOWbXaWHMak1vHZRPQNtf439pv1nar0jKW61cihFuy8c6zfJFgB0tja3Ah" defer></script>
 
     <link rel="apple-touch-icon" sizes="180x180" href="./assets/apple-touch-icon.png">
     <link rel="icon" type="image/png" sizes="32x32" href="./assets/favicon-32x32.png">
@@ -61,7 +61,7 @@ <h1>Pull Requests Buddy</h1>
                 </p>
                 <p>
                     This token stays client's side in your browser and is not sent to a server. Actually, the whole
-                    content of this page and dashboard is generated client's side and doesn't male any call to a service
+                    content of this page and dashboard is generated client's side and doesn't make any call to a service
                     except GitHub itself to retrieve the information.
                 </p>
             </div>