Feature: Show on command

## Context

Conversation on [r/fishshell:  Does fish have something similar to powerlevel10k's show_on_command? ](https://www.reddit.com/r/fishshell/comments/1nzm6cr/does_fish_have_something_similar_to/)

### Preview
![Powerlevel10k Show On Command](
    https://raw.githubusercontent.com/romkatv/powerlevel10k-media/master/show-on-command.gif)

## Mechanism

> [commandline](https://devdocs.io/fish~4.1/cmds/commandline) - set or get the current command line buffer

## Implementations

Zsh:
- [romkatv/powerlevel10k](https://github.com/romkatv/powerlevel10k) (see [doc](https://github.com/romkatv/powerlevel10k/blob/master/README.md#show-on-command))

Fish:
  - [dynamotn/fish-canaudua](https://github.com/dynamotn/fish-canaudua/blob/main/functions/__canaudua_show_on_command.fish)
  - [branchvincent/tide-show-on-cmd](https://github.com/branchvincent/tide-show-on-cmd)

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Feature: Show on command #385

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Uh oh!

Feature: Show on command #385

Description

Context

Preview

Mechanism

Implementations

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

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