Add font thumbnail preview support

[Thesacraft]

I added simple font thumbnail previews for .ttf, .otf and .woff files like it was requested in issue #304 . Currently there are three text sizes (10,12,15) that i selected. I stacked the sample text in the different font sizes next to each other and tried to dynamically fit them next to each other. I am open to changing how the text alignment works and other changes. At the moment it looks like this:

[Thesacraft]

I added a bit of information about the font as requested:

I could not find how to get the weight of the font, if someone knows how to do that let me know.

[olipra]

This is a very good start! Already miles better than the file icon thumbnail. I'm just wondering whether it's worth aligning the text vertically instead of horizontally, and I'm also wondering if displaying the font in different sizes actually is worth it considering the small space it has to fit it. It's less of a problem for the bigger preview but it makes fonts in thumbnails hard to recognize, and I guess the thumbnail and preview can't show two different things. Otherwise it would make more sense for the thumbnail to only show "Aa" or something like that.

[Thesacraft]

I changed it in the way you described here is the result:

I also adjusted the font sizes to 12,15,20

[olipra]

This looks perfect to me! This is gonna be a life-changing feature for me and hopefully other type enthusiasts haha 🙌 Also thank you for taking my feature request in consideration and working on it!

[CyanVoxel]

Amazing work on this! I'm really happy with how this has come out. I've just got a few suggestions that come down to adding dynamic scaling with different preview resolutions and a couple extra file types.

Thank you so much for working on this!

[CyanVoxel]

Change to use width variable instead of hardcoded values (plus remove print comments)

Suggested change

	if draw.textlength(text, font=font) > 256:
	# print(draw.textlength(text, font=font))
	for i in range(
	int(len(text) / int(draw.textlength(text, font=font)) * 256) - 2,
	0,
	-1,
	):
	if draw.textlength(text[:i], font=font) < 256:
	# print(len(text))
	# print(i)
	if draw.textlength(text, font=font) > width:
	for i in range(
	int(len(text) / int(draw.textlength(text, font=font)) * width) - 2,
	0,
	-1,
	):
	if draw.textlength(text[:i], font=font) < width:
	return i

[CyanVoxel]

Pass width variable to wrap_line

Suggested change

	i = wrap_line(text[i:], font=font, draw=draw) + last_i
	i = wrap_line(text[i:], font=font, width=width, draw=draw) + last_i

[CyanVoxel]

Slight adjustment to font sample sizes to show more difference between them

Suggested change

	FONT_SAMPLE_SIZES: list[int] = [12, 15, 20]
	FONT_SAMPLE_SIZES: list[int] = [10, 15, 20]

[CyanVoxel]

Add .ttc and .woff2 file extensions to the constants list (I haven't personally verified .woff2 but .ttc seems to work fine)

Suggested change

	FONT_TYPES: list[str] = [".ttf", ".otf", ".woff"]
	FONT_TYPES: list[str] = [".ttf", ".ttc", ".otf", ".woff", ".woff2"]

[CyanVoxel]

Use native preview sizes with dynamic scaling

Suggested change

	if gradient:
	# handles small thumbnails
	bg = Image.new("RGB", (256, 256), color="#1e1e1e")
	draw = ImageDraw.Draw(bg)
	font = ImageFont.truetype(_filepath, size=170)
	draw.text((10, 0), "Aa", font=font)
	else:
	# handles big thumbnails and renders a sample text in multiple font sizes
	bg = Image.new("RGB", (256, 256), color="#1e1e1e")
	draw = ImageDraw.Draw(bg)
	lines_of_padding = 2
	y_offset = 0
	for font_size in FONT_SAMPLE_SIZES:
	font = ImageFont.truetype(_filepath, size=font_size)
	text_wrapped: str = wrap_full_text(
	FONT_SAMPLE_TEXT, font=font, draw=draw
	# Scale the sample font sizes to the preview image
	# resolution,assuming the sizes are tuned for 256px.
	scaled_sizes: list[int] = [
	math.floor(x * (adj_size / 256)) for x in FONT_SAMPLE_SIZES
	]
	if gradient:
	# handles small thumbnails
	bg = Image.new("RGB", (adj_size, adj_size), color="#1e1e1e")
	draw = ImageDraw.Draw(bg)
	font = ImageFont.truetype(
	_filepath, size=math.ceil(adj_size * 0.65)
	)
	draw.text((10, 0), "Aa", font=font)
	else:
	# handles big thumbnails and renders a sample text in multiple font sizes
	bg = Image.new("RGB", (adj_size, adj_size), color="#1e1e1e")
	draw = ImageDraw.Draw(bg)
	lines_of_padding = 2
	y_offset = 0
	for font_size in scaled_sizes:
	font = ImageFont.truetype(_filepath, size=font_size)
	text_wrapped: str = wrap_full_text(
	FONT_SAMPLE_TEXT, font=font, width=adj_size, draw=draw