Update links to ESQL reference docs

[leemthompo]

In elastic/elasticsearch#126279 we split out the ESQL functions and operators into subpages, which means that a lot of links that point to anchors on the old monolith page need to be updated.

Repos concerned

• docs-content (98%)
• elasticsearch-py

Task 1: Update links to point to new subpages instead of anchors on monolith

The following links need to be updated:

elasticsearch://reference/query-languages/esql/esql-commands.md#esql-dissect
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-drop
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-enrich
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-eval
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-from
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-grok
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-keep
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-limit
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-lookup-join
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-sort
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-stats-by
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-where
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-agg-functions
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-bucket
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-kql
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-like
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-match
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-now
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-operators
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-qstr
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-round
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-search-functions
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-search-operators
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-spatial-functions
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-st_contains
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-st_disjoint
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-st_distance
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-st_intersects
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-st_within
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-to_string
elasticsearch://reference/query-languages/esql/esql-functions-operators.md#esql-type-conversion-functions
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-source-commands
elasticsearch://reference/query-languages/esql/esql-commands.md#esql-processing-commands

Task 2: Follow up in Elasticsearch repo

• Remove redirects.yml file to mute broken links from docs-content and elasticsearch-py

[charlotte-hoblik]

#1095