#KT-19924: Fix usability issue with extract declaration from file intention

Fix ExtractDeclaration intention name in tests

Fix ExtractDeclaration intention folder and description to avoid "not found Dir URL" exception

idea/testData/quickfix/override/dontOfferToImplementMembersForExpectedClass.kt

@@ -1,7 +1,7 @@
 // "Implement members" "false"
 // ACTION: Create test
 // ACTION: Make internal
-// ACTION: Move 'A' to separate file
+// ACTION: Extract 'A' from current file
 
 interface I {
     fun foo()

idea/testData/quickfix/override/implemenAsConstructorParameterFunction.kt

@@ -4,7 +4,7 @@
 // ACTION: Make 'A' abstract
 // ACTION: Make internal
 // ACTION: Make private
-// ACTION: Move 'A' to separate file
+// ACTION: Extract 'A' from current file
 // ERROR: Class 'A' is not abstract and does not implement abstract member public abstract fun foo(): Int defined in I
 interface I {
     fun foo(): Int

idea/testData/quickfix/override/implemenAsConstructorParameterInObject.kt

@@ -3,7 +3,7 @@
 // ACTION: Implement members
 // ACTION: Make internal
 // ACTION: Make private
-// ACTION: Move 'A' to separate file
+// ACTION: Extract 'A' from current file
 // ERROR: Object 'A' is not abstract and does not implement abstract member public abstract val foo: Int defined in I
 interface I {
     val foo: Int