Refactor GitHub Integration (#6713)

* fix: refactor

* fix: tests

* fix: apply octokit plugin pattern

plugins/github/shared/GitHubUtils.ts

@@ -5,8 +5,6 @@ import { integrationSettingsPath } from "@shared/utils/routeHelpers";
 export class GitHubUtils {
   public static clientId = env.GITHUB_CLIENT_ID;
 
-  public static allowedResources = ["pull", "issues"];
-
   static get url() {
     return integrationSettingsPath("github");
   }
@@ -47,27 +45,6 @@ export class GitHubUtils {
     return `${this.url}?install_request=true`;
   }
 
-  /**
-   * Parses a GitHub like URL to obtain info like repo name, owner, resource type(issue or PR).
-   *
-   * @param url URL to parse
-   * @returns An object containing repository, owner, resource type(issue or pull request) and resource id
-   */
-  public static parseUrl(url: string) {
-    const { hostname, pathname } = new URL(url);
-    if (hostname !== "github.com") {
-      return {};
-    }
-
-    const [, owner, repo, resourceType, resourceId] = pathname.split("/");
-
-    if (!this.allowedResources.includes(resourceType)) {
-      return {};
-    }
-
-    return { owner, repo, resourceType, resourceId };
-  }
-
   public static getColorForStatus(status: string) {
     switch (status) {
       case "open":