supabase / supabase / 25878509004 / 1 – studio-tests

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fix(studio): encode special characters in trigger/function cross-link search params (#45851)

Closes #45850.

## Summary

`TriggerList`, `EventTriggerList`, and `FunctionList` built cross-links
between the database triggers and functions pages by interpolating
user-controlled identifiers directly into the URL query string. A
function or schema name containing `&`, `=`, `+`, or `#` corrupted the
destination filter and routed users to the wrong row.

Adds `getDatabaseFunctionsHref` to `TriggerList.utils` (used by both
`TriggerList` and `EventTriggerList`) and a new
`getDatabaseTriggersHref` in `FunctionList.utils`, both with
`encodeURIComponent` wraps. Replaces the three inline interpolations.

`FunctionList` only has a single search param (no schema) because the
link filters by function name only, so its helper takes one less
argument.

Same pattern as #45385.

## Test plan

Added `TriggerList.utils.test.ts` covering `getDatabaseFunctionsHref`
(plain, special chars in name, special chars in schema, both, undefined
inputs) and `FunctionList.utils.test.ts` covering
`getDatabaseTriggersHref` (plain, special chars in name, plus signs and
spaces, undefined inputs). Nine tests total.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Refactor**
* Improved database navigation links for functions and triggers by
standardizing link generation through centralized utility functions.
This ensures consistent URL encoding and parameter handling across the
application.

* **Tests**
* Added comprehensive test coverage for database navigation link
utilities, including edge cases with special characters and empty
parameters.

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