feat(curriculum): add registration form practice project (#42876)

* feat(curriculum): add registration-form practice project

* add parts 001-006

* add parts 007-009

* add parts 010-013

* add parts 014-024, fix 013

* add parts 025-043

* add parts 043-046

* add parts 0047-057 without tests

* fix tests and adjust index.md file I do not understand

* add css tests to parts 037-040

* add tests parts 040-057

* remove space around ERM

* add true assertion until document iframe is fixed

* add critical review suggestions

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
Co-authored-by: gikf <60067306+gikf@users.noreply.github.com>

* use clear, Tom-like language for 038

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>

* change order to match author's age

* apply suggestions with personal pazzaz

* add that thing Nich forgets

* use innerText

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
Co-authored-by: gikf <60067306+gikf@users.noreply.github.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

client/utils/help-category-map.json

@@ -77,5 +77,6 @@
   "periodic-table-database": "Relational Databases",
   "learn-github-by-building-a-list-of-inspirational-quotes": "Relational Databases",
   "number-guessing-game": "Relational Databases",
-  "accessibility-quiz": "HTML-CSS"
+  "accessibility-quiz": "HTML-CSS",
+  "registration-form": "HTML-CSS"
 }