update icon: filezilla (original, original-wordmark, plain, plain-wordmark, line, line-wordmark)

[weh]

Double check these details before you open a PR

• PR does not match another non-stale PR currently opened
• PR name matches the format new icon: Icon name (versions separated by comma). More details here
• PR's base is the develop branch.
• Your icons are inside a folder as seen here
• SVG matches the standards laid out here
• A new object is added in the devicon.json file as seen here

• Updated existing SVG (removed padding, optimized size)
• Added line versions

TBH i am not sure if the Wordmark version is official. I also did not find a suitable original-wordmark file, and the plain-wordmark looks a bit unclean.

This PR closes NONE

Related to #1998

Link to prove your SVG is correct and up-to-date.

[Snailedlt]

The icons look good visually, just the code that needs some more love :)
overall good work, almost done!

[lunatic-fox]

Besides @Snailedlt pointed out, this icon has some particular issues:

• There is no original-wordmark version to plain-wordmark exist and original-wordmark can't be aliased to it's plain version.
• original-wordmark should be following this image below, unfortunately is a png and the text have some soft gradient.
  

I think "The free FTP solution" text can be omitted.

• original should be following the original icon with the Fz styled letters with #ffffff background.

I'll be trying to do the mentioned changes later today.

[lunatic-fox]

Besides @Snailedlt pointed out, this icon has some particular issues:

• There is no original-wordmark version to plain-wordmark exist and original-wordmark can't be aliased to it's plain version.
• original-wordmark should be following this image below, unfortunately is a png and the text have some soft gradient.
  

I think "The free FTP solution" text can be omitted.

• original should be following the original icon with the Fz styled letters with #ffffff background.

I'll be trying to do the mentioned changes later today.

Suggestions

original-wordmark- no text gradient

original

plain-wordmark

plain

line-wordmark

line

[weh]

many thanks to @lunatic-fox i added your images and updated the PR

[lunatic-fox]

many thanks to @lunatic-fox i added your images and updated the PR

Thank you too @weh!
I made the little change on original-wordmark since I figured out how to do the inset gradient on text.

[Snailedlt]

Looks great for the most part, just some minor color discrepancies that need fixing before we're good to merge.

Previews shouldn't change from these suggestions, so I'll post them here:

[Snailedlt]

@lunatic-fox please take another look 🙇‍♂️