OSF: Used model.NewPointer everywhere (#27838)

```release-note
NONE
```

server/channels/api4/channel_test.go

@@ -139,7 +139,7 @@ func TestCreateChannel(t *testing.T) {
 	require.Equal(t, http.StatusBadRequest, r.StatusCode, "Expected 400 Bad Request")
 
 	// Test GroupConstrained flag
-	groupConstrainedChannel := &model.Channel{DisplayName: "Test API Name", Name: GenerateTestChannelName(), Type: model.ChannelTypeOpen, TeamId: team.Id, GroupConstrained: model.NewBool(true)}
+	groupConstrainedChannel := &model.Channel{DisplayName: "Test API Name", Name: GenerateTestChannelName(), Type: model.ChannelTypeOpen, TeamId: team.Id, GroupConstrained: model.NewPointer(true)}
 	rchannel, _, err = client.CreateChannel(context.Background(), groupConstrainedChannel)
 	require.NoError(t, err)
 
@@ -187,7 +187,7 @@ func TestUpdateChannel(t *testing.T) {
 	require.Equal(t, channel.Purpose, newChannel.Purpose, "Update failed for Purpose")
 
 	// Test GroupConstrained flag
-	channel.GroupConstrained = model.NewBool(true)
+	channel.GroupConstrained = model.NewPointer(true)
 	rchannel, resp, err := client.UpdateChannel(context.Background(), channel)
 	require.NoError(t, err)
 	CheckOKStatus(t, resp)
@@ -386,7 +386,7 @@ func TestPatchChannel(t *testing.T) {
 	CheckBadRequestStatus(t, resp)
 
 	// Test GroupConstrained flag
-	patch.GroupConstrained = model.NewBool(true)
+	patch.GroupConstrained = model.NewPointer(true)
 	rchannel, resp, err := client.PatchChannel(context.Background(), th.BasicChannel.Id, patch)
 	require.NoError(t, err)
 	CheckOKStatus(t, resp)
@@ -1351,7 +1351,7 @@ func TestGetAllChannels(t *testing.T) {
 	policy, err := th.App.Srv().Store().RetentionPolicy().Save(&model.RetentionPolicyWithTeamAndChannelIDs{
 		RetentionPolicy: model.RetentionPolicy{
 			DisplayName:      "Policy 1",
-			PostDurationDays: model.NewInt64(30),
+			PostDurationDays: model.NewPointer(int64(30)),
 		},
 		ChannelIDs: []string{policyChannel.Id},
 	})
@@ -1698,7 +1698,7 @@ func TestSearchAllChannels(t *testing.T) {
 		DisplayName:      "SearchAllChannels-groupConstrained-1",
 		Name:             "groupconstrained1",
 		Type:             model.ChannelTypePrivate,
-		GroupConstrained: model.NewBool(true),
+		GroupConstrained: model.NewPointer(true),
 		TeamId:           team.Id,
 	})
 	require.NoError(t, err)
@@ -1853,7 +1853,7 @@ func TestSearchAllChannels(t *testing.T) {
 	policy, savePolicyErr := th.App.Srv().Store().RetentionPolicy().Save(&model.RetentionPolicyWithTeamAndChannelIDs{
 		RetentionPolicy: model.RetentionPolicy{
 			DisplayName:      "Policy 1",
-			PostDurationDays: model.NewInt64(30),
+			PostDurationDays: model.NewPointer(int64(30)),
 		},
 		ChannelIDs: []string{policyChannel.Id},
 	})
@@ -1896,8 +1896,8 @@ func TestSearchAllChannelsPaged(t *testing.T) {
 
 	search := &model.ChannelSearch{Term: th.BasicChannel.Name}
 	search.Term = ""
-	search.Page = model.NewInt(0)
-	search.PerPage = model.NewInt(2)
+	search.Page = model.NewPointer(0)
+	search.PerPage = model.NewPointer(2)
 	channelsWithCount, _, err := th.SystemAdminClient.SearchAllChannelsPaged(context.Background(), search)
 	require.NoError(t, err)
 	require.Len(t, channelsWithCount.Channels, 2)
@@ -3369,7 +3369,7 @@ func TestAddChannelMember(t *testing.T) {
 	client.Logout(context.Background())
 
 	// Set a channel to group-constrained
-	privateChannel.GroupConstrained = model.NewBool(true)
+	privateChannel.GroupConstrained = model.NewPointer(true)
 	_, appErr := th.App.UpdateChannel(th.Context, privateChannel)
 	require.Nil(t, appErr)
 
@@ -3780,7 +3780,7 @@ func TestRemoveChannelMember(t *testing.T) {
 	require.NoError(t, err)
 
 	// If the channel is group-constrained the user cannot be removed
-	privateChannel.GroupConstrained = model.NewBool(true)
+	privateChannel.GroupConstrained = model.NewPointer(true)
 	_, appErr := th.App.UpdateChannel(th.Context, privateChannel)
 	require.Nil(t, appErr)
 	_, err = client.RemoveUserFromChannel(context.Background(), privateChannel.Id, user2.Id)
@@ -4272,7 +4272,7 @@ func TestChannelMembersMinusGroupMembers(t *testing.T) {
 	_, appErr = th.App.AddChannelMember(th.Context, user2.Id, channel, app.ChannelMemberOpts{})
 	require.Nil(t, appErr)
 
-	channel.GroupConstrained = model.NewBool(true)
+	channel.GroupConstrained = model.NewPointer(true)
 	channel, appErr = th.App.UpdateChannel(th.Context, channel)
 	require.Nil(t, appErr)
 
@@ -4615,7 +4615,7 @@ func TestPatchChannelModerations(t *testing.T) {
 		patch := []*model.ChannelModerationPatch{
 			{
 				Name:  &createPosts,
-				Roles: &model.ChannelModeratedRolesPatch{Members: model.NewBool(false)},
+				Roles: &model.ChannelModeratedRolesPatch{Members: model.NewPointer(false)},
 			},
 		}
 
@@ -4652,7 +4652,7 @@ func TestPatchChannelModerations(t *testing.T) {
 		patch := []*model.ChannelModerationPatch{
 			{
 				Name:  &createPosts,
-				Roles: &model.ChannelModeratedRolesPatch{Members: model.NewBool(true)},
+				Roles: &model.ChannelModeratedRolesPatch{Members: model.NewPointer(true)},
 			},
 		}
 
@@ -4729,7 +4729,7 @@ func TestPatchChannelModerations(t *testing.T) {
 		patch := []*model.ChannelModerationPatch{
 			{
 				Name:  &createPosts,
-				Roles: &model.ChannelModeratedRolesPatch{Members: model.NewBool(true)},
+				Roles: &model.ChannelModeratedRolesPatch{Members: model.NewPointer(true)},
 			},
 		}
 
@@ -4814,9 +4814,9 @@ func TestGetChannelMemberCountsByGroup(t *testing.T) {
 	id := model.NewId()
 	group := &model.Group{
 		DisplayName: "dn_" + id,
-		Name:        model.NewString("name" + id),
+		Name:        model.NewPointer("name" + id),
 		Source:      model.GroupSourceLdap,
-		RemoteId:    model.NewString(model.NewId()),
+		RemoteId:    model.NewPointer(model.NewId()),
 	}
 
 	_, appErr = th.App.CreateGroup(group)