Types for join involving Computed Relationships do not work

[hmnd]

Bug report

• I confirm this is a bug with Supabase, not with my own application.
• I confirm I have searched the Docs, GitHub Discussions, and Discord.

Describe the bug

Resolving joins on Computed Relationships in types broke somewhere between v1.16.3 and v1.17.7, resulting in an error like: SelectQueryError<"could not find the relation between placement and hotel">.

To Reproduce

See src/supabase.test-d.ts in the working and broken branches of my repro repo: https://github.com/hmnd/postgrest-computed-rels-repro

Expected behavior

Computed Relationship is resolved successfully.

[hmnd]

Possibly related to #474, but this broke in a later version of supabase-js: v2.47.7

[hmnd]

I've added an additional branch to the same repo that demonstrates a separate, but related issue: https://github.com/hmnd/postgrest-computed-rels-repro/tree/test-diff-name

When a computed relationship is defined with a name that does not match the table involved (eg. function is placements(hotel), whereas table is placement), the types only work with the table's name, rather than the function's name, which is the opposite of what the postgrest api expects.