Fix frozen terminal caused by opener

Favor selection over current for nmv

Add check for empty selection

xdg-open would launch a cli program that would contest the terminal for character input

nop when empty

state.runctx now retains bitwidth as cfg.curctx

Didn't test this out, but judging by the name of the variable this
should be a bugfix

If you have selected some files, you intend to work on them. Also, this prompt
expects <kbd>c</kbd> / <kbd>s</kbd> which should cancel the next prompt in the
delete workflow. Rest of the three workflows are non-fatal.

Benefits of removing this option:
- code reduction
- one less step in the relevant workflows (more than one prompt feels dragged)

This prompt shows in the following workflows:
- delete: users have explicitly requested to prefer sel over current
- batch rename: key <kbd>^R</kbd> renames a single file
- archive: in most of the cases the user would want to archive the selection
- create sym/hard link: not a frequently used workflow (in general)

adding support for ueberzug into plugins/preview-tui

Correct umount fusefs on FreeBSD. rel. issue  #848

fixed wrong spelled words

Updated wall plugin to the standard utility file

Fix #835

```Shell
~/src/EFForg/https-everywhere/utils/rewriter/rewriter.js .
```

Ref: https://github.com/EFForg/https-everywhere/tree/master/utils/rewriter

Remove suspicious file

plugins: preview-tui: video thumbnails in preview-tui

fix: small error

Fix the same issue as #81 but with nuke

This reverts commit 9f3fbd93ce.