fix Debian package errors (#288)

* Fix lintian errors

Fix lintian errors
Short description in debian/changelog to hide lintian changelog warnings
Use launcher scripts that run java and electron from /usr/bin

* Update changelog version

* Rename laucnher scripts. Put electron installaion guide in electron-launcher-standalone.sh

* Seperate debian packager codes from unix-bundler.sh

* chmod +x debian-packager.sh

* Fix mistakes

* Fix mistakes

* Add missing '!' to shebang

* Change faviconlogo.png to tachidesk.png

* Change faviconlogo.png to tachidesk.png

.github/workflows/build_push.yml

@@ -73,7 +73,7 @@ jobs:
           ./windows-bundler.sh win32
           ./windows-bundler.sh win64
           ./unix-bundler.sh linux-x64
-          ./unix-bundler.sh debian-x64
+          ./debian-packager.sh
           ./unix-bundler.sh macOS-x64
           ./unix-bundler.sh macOS-arm64