manager: ui refactor (#21)

* manager: ui refactor

manager/app/src/main/java/me/weishu/kernelsu/KernelSUApplication.kt

@@ -0,0 +1,13 @@
+package me.weishu.kernelsu
+
+import android.app.Application
+
+lateinit var ksuApp: KernelSUApplication
+
+class KernelSUApplication : Application() {
+
+    override fun onCreate() {
+        super.onCreate()
+        ksuApp = this
+    }
+}