feat: mobile-like window size and always-visible stats

- Changed window size to mobile phone format (400x800)
- Removed width condition for ActiveProxyFooter - now always visible
- Added run-umbrix.sh launch script with icon copying
- Stats cards now display on all screen sizes

Makefile

@@ -182,6 +182,8 @@ windows-libs:
 linux-libs:
 	mkdir -p $(DESKTOP_OUT)
 	curl -L $(CORE_URL)/$(CORE_NAME)-linux-amd64.tar.gz | tar xz -C $(DESKTOP_OUT)/
+	# Копируем libcore для Flutter build
+	cd $(DESKTOP_OUT)/lib && rm -f libcore.so && cp hiddify-core.so libcore.so
 
 
 macos-libs: