model: upgrade EventsModel to support quote reposts queries

We also switch to using an eventholder because that is a bit nicer
when it comes to rendering quotes in timelines.

Signed-off-by: William Casarin <jb55@jb55.com>

damus/Views/ReactionsView.swift

@@ -16,7 +16,7 @@ struct ReactionsView: View {
     var body: some View {
         ScrollView {
             LazyVStack {
-                ForEach(model.events, id: \.id) { ev in
+                ForEach(model.events.events, id: \.id) { ev in
                     ReactionView(damus_state: damus_state, reaction: ev)
                 }
             }

damus/Views/RepostsView.swift

@@ -14,7 +14,7 @@ struct RepostsView: View {
     var body: some View {
         ScrollView {
             LazyVStack {
-                ForEach(model.events, id: \.id) { ev in
+                ForEach(model.events.events, id: \.id) { ev in
                     RepostView(damus_state: damus_state, repost: ev)
                 }
             }