Enhance modal functionality with ModalContainer component; update ShareModal to use ModalWrapper; improve responsive text sizes in index.css; integrate FloatingActionButton in HomePage for popup sharing.

client/src/components/ui/LinkShare.tsx

@@ -20,7 +20,7 @@ export default function LinkShare({ link }: { link: string }) {
   return (
     <div className="w-full h-[3.75vw] bg-[#F3F3F3] flex items-center justify-between gap-[0.833vw] px-[1.111vw] rounded-[1.111vw] relative">
       <span
-        className="text-ellipsis overflow-hidden text-s hover:cursor-pointer"
+        className="text-ellipsis text-s hover:cursor-pointer overflow-hidden"
         onClick={handleCopy}
       >
         {link}
@@ -30,7 +30,7 @@ export default function LinkShare({ link }: { link: string }) {
         <Button
           variant="cta"
           size="medium"
-          className="h-[2.778vw] translate-x-[0.556vw]"
+          className="translate-x-[0.556vw]"
           onClick={handleCopy}
         >
           Копировать