Add paste as default settings and enable js/ts paste with imports by default (#233031)

Fixes #184871
For #30066

Adds new settings that let you configure the default way to paste/drop.

Also enables js/ts paste with imports by default for 5.7+. However will not apply by default. Instead it will be shown as an option after pasting. You can then use the `editor.pasteAs.preferences` setting to make it apply automatically or use the `javascript.updateImportsOnPaste.enabled` settings to disable the feature entirely