Update how file captions are rendered (#3554)

* Update the File/Audio captions layout to match Figma.

* Fix caption sizing issues.

The send info label was being added incorrectly.

* Update icon size and regenerate snapshots.

* Fix a regression in the location timeline item layout.

ElementX/Sources/Screens/RoomScreen/ComposerToolbar/View/MessageComposer.swift

@@ -237,6 +237,7 @@ struct MessageComposer_Previews: PreviewProvider, TestablePreview {
                                                     duration: 100,
                                                     waveform: nil,
                                                     source: nil,
+                                                    fileSize: nil,
                                                     contentType: nil)))),
         .loaded(sender: .init(id: "James"),
                 eventID: "123",
@@ -246,6 +247,7 @@ struct MessageComposer_Previews: PreviewProvider, TestablePreview {
                 eventContent: .message(.file(.init(filename: "brain-surgery.pdf",
                                                    caption: "File: Crash course in brain surgery",
                                                    source: nil,
+                                                   fileSize: nil,
                                                    thumbnailSource: nil,
                                                    contentType: nil)))),
         .loaded(sender: .init(id: "Cliff"),