Show progress dialog while we are sending invites in a room (#5342)

* Add `InvitePeopleState.sendInvitesAction`

Keep track of the progress on sending invites with a new state property.

* Keep `RoomInviteMembersView` open until invites are sent

* Sync strings from localazy

* extend `ProgressDialog` to support custom content

For my current design, a simple text element is insufficient. I extend
`ProgressDialog` to give more flexibility over the content of the dialog.

* Show progress dialog while invites are being sent

* Add new ProgressDialog previews to the naming exceptions list

* Update screenshots

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Co-authored-by: ElementBot <android@element.io>
Co-authored-by: Jorge Martín <jorgem@element.io>

tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistPreviewTest.kt

@@ -114,6 +114,8 @@ class KonsistPreviewTest {
         "PollContentViewDisclosedPreview",
         "PollContentViewEndedPreview",
         "PollContentViewUndisclosedPreview",
+        "ProgressDialogWithContentPreview",
+        "ProgressDialogWithTextAndContentPreview",
         "ReadReceiptBottomSheetPreview",
         "RoomMemberListViewBannedPreview",
         "SasEmojisPreview",