Formatter: Fix spacing between '=' and '{' in property accessors

idea/testData/intentions/convertToBlockBody/getter.kt.after

@@ -1,4 +1,4 @@
 val foo: String
-    get()  {
+    get() {
         return "abc"
     }

idea/testData/intentions/convertToBlockBody/getterWithThrow.kt.after

@@ -1,6 +1,6 @@
 // WITH_RUNTIME
 
 val foo: String
-    get()  {
+    get() {
         throw UnsupportedOperationException()
     }

idea/testData/intentions/convertToBlockBody/setter.kt.after

@@ -1,6 +1,6 @@
 var foo: String
     get() = "abc"
-    set(value)  {
+    set(value) {
         doSet(value)
     }