[Bug] Typos in max_shingle_size UI text for search_as_you_type

[jrodewig]

The current UI text states:

The default is three subfields. More subfields enables more specific queries, but increases index size.

The text should be:

The default is three subfields. More subfields enable more specific queries but increase index size.

Note the changes in the second sentence:

• enables -> enable (Subject-verb agreement)
• , but -> but (Comma misuse. Commas aren't needed to separate a clause without a subject.)
• increases -> increase (Subject-verb agreement)

CC @gchaps @KOTungseth

[elasticmachine]

Pinging @elastic/kibana-docs (Team:Docs)

[elasticmachine]

Pinging @elastic/es-ui (Team:Elasticsearch UI)

[gchaps]

@cjcenizal These are good suggestions. However, I feel that that the comma is needed for readability:

More subfields enable additional specific queries, but increase index size.