fix: redirect user to the intented page

[rsdeus]

🎩 What? Why?

PR to fix the redirection of the user to the intended page instead of the current page when they need it, and the login popup is required.

📌 Related Issues

• Related to https://git.octree.ch/decidim/decidim-nightly/-/issues/18

Testing

• Given a Decidim proposal component configured to accept participant proposals
• As a non-registred user, I click on "New Proposal"
• I complete my login/password credentials and login
• Expected: I go on the proposal creation, as I clicked to "New Proposal"

♥️ Thank you!

[github-actions]

This pull request does not contain a valid label. Please add one of the following labels: ['type: feature', 'type: change', 'type: fix', 'type: removal', 'target: developer-experience', 'type: internal']