[Remove Vuetify from Studio] Informative pages in Accounts

[AadarshM07]

Summary

The following PR helps the initiative of removing Vuetify from Studio. This focuses on the accounts page, where previously, MessageLayout a vuetify built component was used. I have designed another component, StudioMessageLayout, which is built using StudioPage and custom styling. The PR has not explicitly removed MessageLayout or affected its present behavior. Instead ,its usage has been removed and replaced in the following files:

• accounts/pages/accountDeleted/AccountDeleted.vue
• accounts/pages/activateAccount/AccountCreated.vue
• accounts/pages/activateAccount/AccountNotActivated.vue
• accounts/pages/activateAccount/ActivationExpired.vue
• accounts/pages/activateAccount/ActivationLinkReSent.vue
• accounts/pages/activateAccount/ActivationSent.vue
• accounts/pages/resetPassword/PasswordInstructionsSent.vue
• accounts/pages/resetPassword/ResetLinkExpired.vue
• accounts/pages/resetPassword/ResetPasswordSuccess.vue

screenshots

Since adding all the images in the PR would make it lengthy, I have uploaded all of them with labels in the following google-drive link: Studio issue#5631

References

Closes #5631

Reviewer guidance

The changes are reflected in the following files. After going to the login page, adding the following URL will take to the page:
AccountDeleted.vue = /account-deleted
AccountCreated.vue = /account-created
AccountNotActivated.vue = /account-not-active
ActivationExpired.vue = /activation-expired
ActivationLinkReSent.vue = /activation-resent
ActivationSent.vue = /activation-sent
PasswordInstructionsSent.vue = /password-reset-sent
ResetLinkExpired.vue = /reset-expired
ResetPasswordSuccess.vue = /password-reset-success

…

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