v1.2.7

Frontend:

• Added the tailwind-merge NPM package.
• ColorInput update: the input has a new color picker built-in
• LineInput: if we enter an invalid logo, the badge won't show the broken image.
• New input field for the fontFamily query param
• Added a new UrlBuilder class that generates the card URL correctly. It also skips the default values, so the result is shorter.

Backend:

• The width of the badges is now calculated correctly (from the SVG string), so the alignment is much nicer.
• New query param: fontFamily

Other:

• Added an animated GIF in the README. (see #32)
• Add two missing themes in the THEMES.md file. (see #33)