UI: Update Snackbar style & Fix some problem

Signed-off-by: Fung Gwo <fython@163.com>

Author: fython

StatusBarCompat/src/main/java/moe/feng/material/statusbar/AppBarLayout.java

@@ -9,13 +9,13 @@ ext {
 }
 
 buildscript {
-    ext.kotlin_version = '1.3.20'
+    ext.kotlin_version = '1.3.21'
     repositories {
         jcenter()
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.0'
+        classpath 'com.android.tools.build:gradle:3.3.1'
         classpath 'com.google.gms:google-services:4.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }