fix(plugin): add highlight for context-start to indent-blankline

[jackcogdill]

Description

• 'nocombine' is intentionally omitted; e.g. to preserve italics

Screenshots

before:

after:

[sainnhe]

What's the plugin that italicize the words in the first picture? Is that the default behavior of context start?

[jackcogdill]

What's the plugin that italicize the words in the first picture? Is that the default behavior of context start?

It's treesitter.

enabled:

disabled:

[sainnhe]

LGTM. Thanks!