Update browserslist config (#2836)

* use the defaults
* drop Edge < 15
* drop Android since newer Android uses Android WebView which is Chromium-based

.browserslistrc

@@ -1,13 +1,11 @@
 # https://github.com/browserslist/browserslist#readme
 
->= 1%
+>= 0.2%
-last 1 major version
+last 2 major versions
 not dead
 Chrome >= 45
 Firefox >= 38
-Edge >= 12
+Edge >= 15
 Explorer >= 10
 iOS >= 9
 Safari >= 9
-Android >= 4.4
-Opera >= 30

docs/browser-support.md

@@ -10,19 +10,18 @@ AdminLTE comes with the same browser support as Bootstrap 4.
 >
 > For more details [look here](https://getbootstrap.com/docs/4.4/getting-started/browsers-devices/#supported-browsers).
 
-You can find our supported range of browsers and their versions in [our .browserslistrc file](https://github.com/ColorlibHQ/AdminLTE/blob/v3-dev/.browserslistrc):
+You can find our supported range of browsers and their versions in [our .browserslistrc file](https://github.com/ColorlibHQ/AdminLTE/blob/master/.browserslistrc):
+
 ```
 # https://github.com/browserslist/browserslist#readme
 
->= 1%
+>= 0.2%
-last 1 major version
+last 2 major versions
 not dead
 Chrome >= 45
 Firefox >= 38
-Edge >= 12
+Edge >= 15
 Explorer >= 10
 iOS >= 9
 Safari >= 9
-Android >= 4.4
-Opera >= 30
 ```