Fix filepicker manual input

[nhamilton1]

two things i noticed when i was playing around with the new feat of sending images:

1. when you are in trying to manually type our the file name, you were not able to type i
2. if you were manually typing out the file name and you tried to press enter to attach the image, it would try to submit the current item you are highlighting over on the directory and not the manually inputted file.

[PhantomReactor]

if isPathDir {
I think this duplicated code can be removed if we update f.selectedFile in the conditional block with the correct path and then use it in the addAttachmentToMessages() function

[nhamilton1]

if isPathDir { I think this duplicated code can be removed if we update f.selectedFile in the conditional block with the correct path and then use it in the addAttachmentToMessages() function

sorry about the duplicate code, i am new at go. I want to make sure i understood it correctly before i commit:

		case key.Matches(msg, filePickerKeyMap.Enter):
			var path string
			var isPathDir bool
			if f.cwd.Focused() {
				path = f.cwd.Value()
				fileInfo, err := os.Stat(path)
				if err != nil {
					logging.ErrorPersist("Invalid path")
					return f, cmd
				}
				isPathDir = fileInfo.IsDir()
			} else {
				path = filepath.Join(f.cwdDetails.directory, "/", f.dirs[f.cursor].Name())
				isPathDir = f.dirs[f.cursor].IsDir()
			}
			if isPathDir {
				newWorkingDir := DirNode{parent: f.cwdDetails, directory: path}
				f.cwdDetails.child = &newWorkingDir
				f.cwdDetails = f.cwdDetails.child
				f.cursorChain = f.cursorChain.Push(f.cursor)
				f.dirs = readDir(f.cwdDetails.directory, false)
				f.cursor = 0
				f.cwd.SetValue(f.cwdDetails.directory)
				f.getCurrentFileBelowCursor()
			} else {
				f.selectedFile = path
				return f.addAttachmentToMessage()
			}

removed: path := filepath.Join(f.cwdDetails.directory, "/", f.dirs[f.cursor].Name()) from the if isPathDir block since the path was already set

[PhantomReactor]

This looks fine