Disable Team tests if required (#234)

1. Add env variables loader using dotenv to e2e tests
2. Skip Team account tests based on variable
3. Remove hardcoded instance of Makerkit in tests

apps/e2e/tests/admin/admin.spec.ts

@@ -231,6 +231,8 @@ test.describe('Admin', () => {
   });
 
   test.describe('Team Account Management', () => {
+    test.skip(process.env.ENABLE_TEAM_ACCOUNT_TESTS !== 'true', 'Team account tests are disabled');
+
     let testUserEmail: string;
     let teamName: string;
     let slug: string;

apps/e2e/tests/utils/mailbox.ts

@@ -102,7 +102,7 @@ export class Mailbox {
 
     const json = await this.getEmail(email, {
       deleteAfter,
-      subject: `One-time password for Makerkit`,
+      subject: `One-time password for`,
     });
 
     if (!json) {
@@ -152,7 +152,7 @@ export class Mailbox {
     const message = params.subject
       ? (() => {
           const filtered = messagesResponse.messages.filter(
-            (item) => item.Subject === params.subject,
+            (item) => item.Subject.includes(params.subject!),
           );
 
           console.log(