[Enhancement] Keyboard Shortcut to promote current node to sibling of parent

[edwinclement08]

I often end up creating a child node that, in turn, ends up with quite a few of its own children. In this case, most of the tab titles are truncated due to multiple levels of indentation.

I typically solve this by moving the current tab to the root level via the mouse. This is distracting in a laptop environment without a mouse as my trackpad is a bit subpar.

I am suggesting a couple of keyboard shortcuts to alleviate this issue. If there is an existing way to do this, please do suggest.

Possible actions:

• Promote to parent's Sibling
• Promote to root Level
• Promote to root Level and minimize the previous tree

[piroor]

TST More Tree Commands have shortcut slots for commands to manipulate tree structure. "Promote to parent's Sibling" is already there and others need to be added. Pull requests to do that is welcome.

[I60R]

I also suggest you to use "flatten tree" feature

[piroor]

Note: I have less motivation to implement new features by my hand, and pull requests to implement "good first issue" labeled features like this are always welcome. I hope these issues get people involved to join opensource development.

A new keyboard shortcut will be added here:

tst-more-tree-commands/manifest.json

Lines 48 to 49 in c18b790

	}
	},

tst-more-tree-commands/background/background.js

Lines 354 to 355 in c18b790

	return;
	}

Codes for a new menu command will be added here:

tst-more-tree-commands/background/background.js

Lines 155 to 156 in c18b790

	}
	};

tst-more-tree-commands/background/background.js

Lines 225 to 226 in c18b790

	default:

tst-more-tree-commands/background/background.js

Lines 284 to 285 in c18b790

	default: