Fix exception in Initiatives' Page

[andreslucena]

🎩 What? Why?

There's a bug on the creation of Initiatives related to the Page functionality

Steps to reproduce

1. Create a new initiative (or use one initiative from the seeded database)
2. Go to the public page (aka show.html.erb)
3. Click on "Page"
4. See exception

Explanation

This is related to the introduction of Decidim::Env with #8725: we're passing a string for the Decidim::initiatives.default_components, where we used to have a symbol.

decidim/decidim-generators/lib/decidim/generators/app_templates/secrets.yml.erb

Line 78 in b510d94

default_components: <%%= Decidim::Env.new("INITIATIVES_DEFAULT_COMPONENTS", "pages, meetings").to_array.to_json %>

Mind that some installations didn't make the change to using the configuration with EnvVars, that's why its working there (for instance in https://try.decidim.org)

This PR fixes this bug in three different ways:

1. For existing installations, there's a new rake task: bin/rails decidim:initiatives:upgrade:fix_broken_pages
2. For new initiatives, we fix it on the command
3. For seeds (development and staging), we fix it on the seed

📌 Related Issues

• Related to Make Decidim fully configurable via ENV vars #8725

Testing

Rake task

1. Check the bug by following the instructions on "Steps to reproduce"
2. Run bin/rails decidim:initiatives:upgrade:fix_broken_pages
3. Check that the page is working

Note that it seems like the design is broken, but that's actually unrelated to the fix. It's because we have the redesign implemented on develop in decidim-pages

New initiatives

1. Sign in as a user
2. Go to Initiatives, create a new Initiative
3. Go to the initiative public page (aka show)
4. Click on "Page"
5. See that it works

Seeded initiatives

Regenerate the database and check that it is working by going to the "Page" of an Initiative

bin/rails db:drop db:setup db:seed

📷 Screenshots

♥️ Thank you!

[alecslupu]

@andreslucena can you have a look, on why this command is not being load up?

[alecslupu]

LGTM. Thanks!