解决选择根磁盘无法安装问题，后面跟上JUSTAR目录路径

修改安装目录后同样跟上JUSTAR目录路径
默认路径不变

installer.nsh

@@ -0,0 +1,8 @@
+!define DIR_NAME "JUSTAR"
+
+Function .onVerifyInstDir
+  StrLen $0 "\${DIR_NAME}"
+  StrCpy $1 "$INSTDIR" "" -$0
+  StrCmp $1 "\${DIR_NAME}" +2 0
+  StrCpy $INSTDIR "$INSTDIR\${DIR_NAME}"
+FunctionEnd

package.json

@@ -79,7 +79,7 @@
       "runAfterFinish": true,
       "installerIcon": "./static/images/justar.ico",
       "uninstallerIcon": "./static/images/justar.ico",
-      "include":""
+      "include":"./installer.nsh"
     }
   },
   "dependencies": {