odoo/documentation#15800

Created by Accounting, Dylan Kiss (dyki)

Blocked

label
odoo-dev:17.0-fix-untranslatable-parts-dyki
head
4c272ce127b55ea7c22e5add583a1fc6bf41c0b4
odoo/documentation
17.0 #15800 missing r+
18.0
saas-18.2
saas-18.3
saas-18.4
19.0
master

[FIX] *: make several untranslatable parts translatable

Some parts of the documention were currently not translatable:
- the custom Card directives
- the strings in the layout HTML pages
- the placeholder text in the search box
- the "Edit on GitHub" text on each page

This commit makes sure that all of these are translatable now.