feat: handle removed grey-x colors from stylekit (#1046)

app/assets/javascripts/Components/AttachedFilesPopover/AttachedFilesPopover.tsx

@@ -153,7 +153,7 @@ export const AttachedFilesPopover: FunctionComponent<Props> = observer(
               <Button variant="normal" onClick={handleAttachFilesClick} onBlur={closeOnBlur}>
                 {currentTab === PopoverTabs.AttachedFiles ? 'Attach' : 'Upload'} files
               </Button>
-              <div className="text-xs color-grey-0 mt-3">Or drop your files here</div>
+              <div className="text-xs color-passive-0 mt-3">Or drop your files here</div>
             </div>
           )}
         </div>

app/assets/javascripts/Components/AttachedFilesPopover/PopoverFileItem.tsx

@@ -99,7 +99,7 @@ export const PopoverFileItem: FunctionComponent<PopoverFileItemProps> = ({
               )}
             </div>
           )}
-          <div className="text-xs color-grey-0">
+          <div className="text-xs color-passive-0">
             {file.created_at.toLocaleString()} · {formatSizeToReadableString(file.decryptedSize)}
           </div>
         </div>