fixed bug with server not listening messages on first export and added a button to stop the server

deploy/archlinux/PKGBUILD

@@ -1,6 +1,6 @@
 # Maintainer: Leca <leca@foxarmy.org>
 pkgname=checks-parser-git
-pkgver=alpha_0.0.2
+pkgver=alpha_0.0.4
 pkgrel=1
 epoch=
 pkgdesc="Utility for parsing checks(receipts) to csv"
@@ -8,7 +8,7 @@ arch=('x86_64')
 url="https://git.foxarmy.org/leca/checks-parser"
 license=('GPL-3.0-or-later')
 groups=()
-depends=('qt5-base' 'opencv' 'zbar' 'nlohmann-json' 'tesseract')
+depends=('qt5-base' 'opencv' 'zbar' 'nlohmann-json' 'tesseract' 'qrencode')
 makedepends=('cmake' 'make' 'gcc' 'git' 'qt5-tools')
 checkdepends=()
 optdepends=('tesseract-data-rus: scan russian checks with OCR')