Use the full app name

I believe this should ensure that specific
folders and location will then have a unique
path for this app in the registry, which
should make the install path version specific

Contributes to CURA-9365

packaging/NSIS/Ultimaker-Cura.nsi.jinja

@@ -12,7 +12,7 @@
 !define MAIN_APP_EXE "{{ main_app }}"
 !define INSTALL_TYPE "SetShellVarContext all"
 !define REG_ROOT "HKCU"
-!define REG_APP_PATH "Software\Microsoft\Windows\CurrentVersion\App Paths\${MAIN_APP_EXE}"
+!define REG_APP_PATH "Software\Microsoft\Windows\CurrentVersion\App Paths\${APP_NAME}"
 !define UNINSTALL_PATH "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APP_NAME}"
 
 !define REG_START_MENU "Start Menu Folder"