Copy unreleased notes to changelog

[podliashanyk]

In some PRs changelog entries were forgotten to be updated (only notes were updated instead). This PR makes chengelog more up to date.
As mentioned in #559:

Before it is done, some entries need to be manually moved from NOTES to CHANGELOG. This is because in the following PRs for some reason I have only updated the NOTES file (which further proves that keeping both files can easily lead to confusion when contributing):

• Add source internal id detail #557
• Add missing article in in ticket generation modal #552
• Add link to admin page #553

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.34%. Comparing base (c97acf1) to head (80e708e).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #563   +/-   ##
=======================================
  Coverage   57.34%   57.34%           
=======================================
  Files          86       86           
  Lines        3692     3692           
  Branches      837      839    +2     
=======================================
  Hits         2117     2117           
  Misses       1566     1566           
  Partials        9        9           

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[hmpf]

I don't understand what this is saying but it's text and we're in a hurry so ok

[podliashanyk]

I believe it should have been added instead of changed entry. Merge conflict side effect I would guess. But as you said, we are in a hurry 😅