added font converter

Fix for users that don't have File Manager when exporting the font, added Save/Export to Downloads button

if you have errors, ideas, don't hesitate to write them here
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если есть идеи, багрепорты, не стесняйтесь написать здесь

keep translating to ru and eng)

A lot of translations in RUS and ENG, almost finished

MATH and testing color font

on Glyph tab added two ways of rendering the glyphs

Fixed export to SVG and PNG and added random color