Let's change that to the new rubocop default, which is also the
suggestion in the ruby style guide.

See https://github.com/bbatsov/ruby-style-guide#percent-literal-braces

closes #7466

fixes #7195

closes #7455

[ci skip]

closes #7458

fixes #7456

closes #7457

Fixes #7421

closes #7447

Use old style for Style/PercentLiteralDelimiters for now. Maybe we can
change this in the future, because the ruby style guide suggests to use
`[]` (which is also the new default for rubocop).

closes #7443#

Also add `require: false` everywhere.

This changes links from /posts/:id to /posts/:guid where the links are
not clicked very often. ID search is faster than guid search so we can't
change it everywhere, but these links are not very useful for clicking,
but can be used for easier guid look up.

closes #7453

Fixes #7363

closes #7452

Breaking a public key of a person can be used to "block" receiving posts
from this person on the pod. So we should handle that case better and
not just trigger many retries for something that will fail again.

closes #7448

This is now broken since more than half a year, so I think we can just
remove it.

Podmins shouldn't use this anyway, because it does bad things, like
replacing NULL with an empty string when editing something. If we really
need an admin interface for something, we should add it to our own admin
panel at /admins/dashboard.

Fixes #7027 and #6413

closes #7440

Fixes #7249

closes #7420

Fixes #7438. The regression has possibly been introduced by #7207.

closes #7441

The previous version logged the encrypted private messages of the new
protocol, which only makes the logfiles bigger without any benefit,
because it's encrypted anyway ...

closes #7435

closes #7419

Here we also set autoDispose to false. This is an option that was introduced
sometime after our last bump. Default is true and it disposes timeago object
if it is not in DOM. But that is the way we initialize timeago objects, therefore
if we have autoDispose=true then they will be disposed before they inserted in DOM.
So by using autoDispose=false we enforce previous behavior that worked fine for us.