:lipstick: Deprecate backspaceToBeginningOf{Word,Line}

Rename functions `backspaceToBeginningOfWord` to `deleteToBeginningOfWord` and
`backspaceToBeginningOfLine to `deleteToBeginningOfLine`.
Rename commands `editor:backspace-to-beginning-of-word` to
`delete-to-beginning-of-word` and `editor:backspace-to-beginning-of-line` to
`editor:delete-to-beginning-of-line`.

Fix #1791
:memo: Add more Emoji to the contributing guide

Suggest Emoji for:
 - Fixing something on Mac OS
 - Fixing a bug
 - Burning whitespace
 - Fixing the CI build
 - Adding tests
 - Refactoring
 - Security
Use :apple: for Mac OS specific bugs
Use :fire: emoji for general deleting of code
Remove :recycle: from the emoji in CONTRIBUTING.md
merge conflict
Bug #1791 Fix typo in example group name and function names.
Upgrade to tabs@0.40.0
Try to fix flaky spec
Explicitly set permissions on temp folder

Refs #2129
Change security emoji to :lock:
Add application:install-update to workspaceView
Merge pull request #2173 from Locke23rus/issue-1791

:lipstick: Deprecate backspaceToBeginningOf{Word,Line}
Upgrade to settings-view@0.115.0
Merge pull request #2198 from hkdobrev/commits-emoji

Add more Emoji to the contributing guide
Upgrade to release-notes@0.31.0