Fix Poll history 'Load more' button alignment (#2577)

* Fix Poll history 'Load more' button alignment

* Update screenshots

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>

features/poll/impl/src/main/kotlin/io/element/android/features/poll/impl/history/PollHistoryStateProvider.kt

@@ -41,6 +41,11 @@ class PollHistoryStateProvider : PreviewParameterProvider<PollHistoryState> {
                 activeFilter = PollHistoryFilter.PAST,
                 currentItems = emptyList(),
             ),
+            aPollHistoryState(
+                activeFilter = PollHistoryFilter.PAST,
+                currentItems = emptyList(),
+                hasMoreToLoad = true,
+            ),
         )
 }
 

features/poll/impl/src/main/kotlin/io/element/android/features/poll/impl/history/PollHistoryView.kt

@@ -191,6 +191,7 @@ private fun PollHistoryList(
                 Column(
                     modifier = Modifier.fillParentMaxSize().padding(bottom = 24.dp),
                     verticalArrangement = Arrangement.Center,
+                    horizontalAlignment = Alignment.CenterHorizontally,
                 ) {
                     val emptyStringResource = if (filter == PollHistoryFilter.PAST) {
                         stringResource(R.string.screen_polls_history_empty_past)

tests/uitests/src/test/snapshots/images/ui_S_t[f.poll.impl.history_PollHistoryView_null_PollHistoryView-Day-1_2_null_4,NEXUS_5,1.0,en].png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:821058570014a0418b22eb4119122b595f802cabeffcabe30c9085b1485ab2c2
+size 19568

tests/uitests/src/test/snapshots/images/ui_S_t[f.poll.impl.history_PollHistoryView_null_PollHistoryView-Night-1_3_null_4,NEXUS_5,1.0,en].png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a174fd40ab7fa21541c6cf2e25edbe3f286c5aaf7103ec8cf6c4dbc94bba373e
+size 18512