# What this PR does
* Make the filter input say `Filter results...` instead of `Search or
filter results...` on the alert group page; disallow custom input there
so it's only possible to choose among existing filters
* Remove outdated `<page>/filters?search=` functionality from internal
API
## Which issue(s) this PR closes
Related to https://github.com/grafana/oncall-private/issues/2679
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## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] Added the relevant release notes label (see labels prefixed w/
`release:`). These labels dictate how your PR will
show up in the autogenerated release notes.
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