add possibility to change profile fields, refactor (#751)

* refactor EditProfileActivity, add profile fields

* preserve transparency when cropping profile images

* dont validate profile fields on client side

* revert unintentional change in card_frame_dark.xml

* improve activity_edit_profile layout for tablets

* Revert "improve activity_edit_profile layout for tablets"

This reverts commit 20ff3d167c39b15566e017108b33fe58690a8482.

* improve activity_edit_profile layout for tablets

* fix bug in EditProfileActivity, add snackbar

* improve EditProfileActivity code

* use events instead of shared prefs to communicate profile update

app/src/main/java/com/keylesspalace/tusky/entity/Account.kt

@@ -70,15 +70,22 @@ data class Account(
 data class AccountSource(
         val privacy: Status.Visibility,
         val sensitive: Boolean,
-        val note: String
+        val note: String,
+        val fields: List<StringField>?
 ): Parcelable
 
 @Parcelize
 data class Field (
-        val name:String,
+        val name: String,
         val value: @WriteWith<SpannedParceler>() Spanned
 ): Parcelable
 
+@Parcelize
+data class StringField (
+        val name: String,
+        val value: String
+): Parcelable
+
 object SpannedParceler : Parceler<Spanned> {
     override fun create(parcel: Parcel): Spanned = HtmlUtils.fromHtml(parcel.readString())