hunk.code_window: func NewFileBackend(settings FileBackendSettings) (FileBackend, error) {
   	switch settings.DriverName {
   	case driverS3:
  
hunk.labels: add keep keep
hunk.after_edit: 	return newFileBackend(settings, true)
   }
   // NewExportFileBackend creates a new file backend for exports, that will not attempt to use bifrost.
   func NewExportFileBackend(settings FileBackendSettings) (FileBackend, error) {
   	return newFileBackend(settings, false)
   }
   func newFileBackend(settings FileBackendSettings, canBeCloud bool) (FileBackend, error) {
  
hunk.file_path: server/platform/shared/filestore/filesstore.go
hunk.type: add
file: @import 'utils/variables';
  
  .AddToChannels {
      &__messageInput {
          width: 100%;
          height: 90px;
          padding: 12px;
          border: 1px solid rgba(var(--center-channel-color-rgb), 0.64);
          margin-bottom: 8px;
          background: var(--center-channel-bg);
          border-radius: 4px;
          resize: vertical;
  
          &:focus {
              padding: 11px;
              border: 2px solid var(--button-bg);
          }
      }
  
      .help-text {
          // override default from _inputs.scss
          margin: 0;
          color: rgba(var(--center-channel-color-rgb), 0.64);
      }
  
      &__customMessage {
          position: relative;
          width: 100%;
          max-width: 720px;
  
          &Title {
              display: flex;
              align-items: center;
              justify-content: space-between;
          }
  
          a {
              color: rgba(var(--button-bg-rgb), 0.88);
              font-weight: 600;
          }
  
          svg {
              &:hover {
                  fill: rgba(var(--center-channel-color-rgb), 0.56);
              }
  
              position: relative;
              top: 3px;
              width: 24px;
              height: 24px;
              cursor: pointer;
              fill: rgba(var(--center-channel-color-rgb), 0.64);
          }
  
          .help-text {
              span {
                  font-weight: normal;
              }
          }
      }
  }
  