* FIX: Restore dismissing the first notification
Reverts the temporary fix (8e4fea897e) and restores the feature introduced in e638d43f0a.
The issue that was the reason for the revert (https://meta.discourse.org/t/logins-redirects-to-missing-notifications-page/149718) was a combination of two bugs:
1. Fixed in this commit - the click listener was accidentally registered also for logged-out users. This meant that the first click on a page always trigger an AJAX call to the notifications endpoint (`/notifications?recent=true&limit=5`), which returned a 403 error. Now, this code is run only when the user is logged in.
2. A still unknown bug that I could not reproduce, which was somehow setting the login redirect cookie to the URL of that previously failed AJAX request.
* FIX: paste the spreadsheet to the composer
If we paste spreadsheet with the missing label we receive
`" this \n1 2"`
If we trim whitespace at the beginning then our later calculation to determine if it is a table is incorrect:
```
const columns = rows.map((r) => r.split("\t").length);
const isTable =
columns.reduce((a, b) => a && columns[0] === b && b > 1)
```
https://meta.discourse.org/t/pasting-from-spreadsheet-wont-work-if-corner-cell-is-empty/169443
Using arrow functions changes `this` context, which is undesired in tests, e.g. it makes it impossible to setup things like pretender (`this.server`) in `beforeEach` hooks.
Ember guides always use classic functions in examples (e.g. https://guides.emberjs.com/release/testing/test-types/), and that's what it uses in its own test suite, as do various addons and ember apps.
It was also already used in Discourse where `this` was required. Moving forward, it will be needed in more places as we migrate toward ember-cli.
(I might later add a custom rule to eslint-discourse-ember to enforce this)
In newer Embers jQuery is removed. There is a `find` but it only returns
one element and not a jQuery selector. This patch migrates our code to a
new helper `queryAll` which allows us to remove the global.
This commit is also moving one test to a component test.
A followup to this commit would be to ensure every dropdowns are using a regex instead of the normalize/lowercase system we have now.
We used many global functions to handle tests when they should be
imported like other libraries in our application. This also gets us
closer to the way Ember CLI prefers our tests to be laid out.
This is where they should be as far as ember is concerned. Note this is
a huge commit and we should be really careful everything continues to
work properly.
