An error is being thrown if `icon_svg(height="100%")`

[schloerke]

• faicons version: "0.2.1"
• Python version: 3.11
• Operating System: macos

Description

Describe what you were trying to get done.

• I'd like to make the icon grow via a height (or width) of 100%

Tell us what happened, what went wrong, and what you expected to happen.

• I could not create the icon an an error was thrown. I'd expect it to create an icon as it is a valid css unit

What I Did

>>> import faicons
>>> faicons.icon_svg("piggy-bank", height = "100%")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/barret/Documents/git/rstudio/py-shiny/py-shiny.nosync/venv/lib/python3.11/site-packages/faicons/_core.py", line 131, in icon_svg
    h = _parse_length_unit(height)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/barret/Documents/git/rstudio/py-shiny/py-shiny.nosync/venv/lib/python3.11/site-packages/faicons/_core.py", line 190, in _parse_length_unit
    raise ValueError(
ValueError: Values provided to `height` and `width` must have a numerical value followed by a CSS length unit.

[chendaniely]

I put more details about where this is coming from in #7