Route Phoenix editor auto indent and completion through adaptation logic

[duranb]

Currently the SequenceEditor component is calling some "core" functions directly (i.e. auto-indent, auto-complete), and doesn't allow users to override it via adaptations.

We should apply the same logic that we have done for sequence output products to this for sequence input.

Also there's still a seq-json-linter.ts file and seqJsonLinter() function inside that could be renamed to more generic names since it already uses the adaptation logic.

[dandelany]

Related to the changes introduced with PR #1425