Generalized 'Threadiverse' sections

Previously, we had separate guide sections for Lemmy and Piefed, with very few Piefed specific pages. Instead of writing a new set of pages for Piefed, we have generalized most of the Lemmy pages into pages that can be applied to any threadiverse platform. When the page can use additional Piefed specific information or screenshots, we added a "🛠️ Help Needed" card near the top.

This includes the following pages:

• threadiverse/overview
• threadiverse/detailed-overview
• threadiverse/alternative-uis
• threadiverse/apps
• threadiverse/finding-communities
• threadiverse/formatting-posts
• threadiverse/how-to-block
• threadiverse/how-to-deal-with-inappropriate-content
• threadiverse/how-to-open-in-my-instance

Since 'privacy' information will be specific to each platform, and there is more of a risk if a user is confused about that information, we are keeping those pages separate. The existing Lemmy page is still up, and there is a work-in-progress page for Piefed that a contributor is working on.

• https://fedecan.ca/...
• https://github.com/fedecan-ca/fedecan.ca/pull/63

At this time, the moderation, admin, and dev sections are still separate.

• We will likely generalize the moderation section next, once the example rule templates are ready
• The admin sections will likely stay separate
• The future of the dev section is uncertain, and it might be generalized to the fediverse level

Updated 'Alternative UIs' page

https://fedecan.ca/...

The entries now follow a consistent format, and are sorted alphabetically after the default UIs. We have also added a summary table that compares all of the alternative UIs.

RSS feeds for announcements

These announcements are intended for users that have accounts on our platforms, or are interested in news about our organization.

You can use it by adding the following link to your RSS feed reader / aggregator: https://fedecan.ca/feed-en.xml

Other changes

Other changes include:

• Updated the wording on the "Our Platforms" section so that it is clearer for new users: https://fedecan.ca/en/#our-platforms
• We published a few older announcements to the website. They existed only as Lemmy/Piefed posts in the past: https://fedecan.ca/en/announcements
• Updated the donation page with a nicer comparison table and option cards. We did not make any changes to the donation options, that will come at a later time: https://fedecan.ca/en/donate
• We made fixes to the footer responsiveness and style