[BUGFIX] Fix installer password toggle icon rendering

The ajax Icon API is currently not available during
first install, therefore neither getIcon nor the
icon web component may be used to render an icon.
The icon markup is therefore now pre-rendered
via fluid for both states and toggled via CSS.

Resolves: #101765
Related: #98089
Releases: main, 12.4
Change-Id: Ib72c06e41f083e4dc7392845058fc86aae95af9c
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/80712


Reviewed-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: core-ci <typo3@b13.com>