Downloaded files: include title + ext in filename

src/gui/Base/HAvatar.qml

@@ -18,6 +18,7 @@ Rectangle {
 
     property string name
     property alias mxc: avatarImage.mxc
+    property alias title: avatarImage.title
 
     property alias toolTipMxc: avatarToolTipImage.mxc
     property alias sourceOverride: avatarImage.sourceOverride
@@ -77,6 +78,7 @@ Rectangle {
                 id: avatarToolTipImage
                 fillMode: Image.PreserveAspectCrop
                 mxc: avatarImage.mxc
+                title: avatarImage.title
 
                 sourceSize.width: avatarToolTip.dimension
                 sourceSize.height: avatarToolTip.dimension

src/gui/Base/HMxcImage.qml

@@ -13,6 +13,7 @@ HImage {
 
 
     property string mxc
+    property string title
     property string sourceOverride: ""
     property bool thumbnail: true
     property var cryptDict: ({})
@@ -41,7 +42,8 @@ HImage {
 
         const method = image.thumbnail ? "get_thumbnail" : "get_media"
         const args   = image.thumbnail ?
-                       [image.mxc, w, h, cryptDict] : [image.mxc, cryptDict]
+                       [image.mxc, image.title, w, h, cryptDict] :
+                       [image.mxc, image.title, cryptDict]
 
         py.callCoro("media_cache." + method, args, path => {
                 if (! image) return

src/gui/Base/HRoomAvatar.qml

@@ -7,6 +7,9 @@ HAvatar {
           displayName.substring(1) :
           displayName
 
+    title: "room_" + roomId + ".avatar"
 
+
+    property string roomId
     property string displayName
 }

src/gui/Base/HUserAvatar.qml

@@ -4,6 +4,7 @@ import QtQuick 2.12
 
 HAvatar {
     name: displayName || userId.substring(1)  // no leading @
+    title: "user_" + userId + ".avatar"
 
 
     property string userId