fix: always render detailed team permissions table in sidebar (#8108)

Remove the generic write/admin description block for AccessMode 2/3 and unconditionally display the unit-level permissions table.

fixes #3517

## Checklist

The [contributor guide](https://forgejo.org/docs/next/contributor/) contains information that will be helpful to first time contributors. There also are a few [conditions for merging Pull Requests in Forgejo repositories](https://codeberg.org/forgejo/governance/src/branch/main/PullRequestsAgreement.md). You are also welcome to join the [Forgejo development chatroom](https://matrix.to/#/#forgejo-development:matrix.org).

### Tests

- I added test coverage for Go changes...
  - [ ] in their respective `*_test.go` for unit tests.
  - [ ] in the `tests/integration` directory if it involves interactions with a live Forgejo server.
- I added test coverage for JavaScript changes...
  - [ ] in `web_src/js/*.test.js` if it can be unit tested.
  - [X] in `tests/e2e/*.test.e2e.js` if it requires interactions with a live Forgejo server (see also the [developer guide for JavaScript testing](https://codeberg.org/forgejo/forgejo/src/branch/forgejo/tests/e2e/README.md#end-to-end-tests)).

### Documentation

- [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change.
- [X] I did not document these changes and I do not expect someone else to do it.

### Release notes

- [ ] I do not want this change to show in the release notes.
- [X] I want the title to show in the release notes with a link to this pull request.
- [ ] I want the content of the `release-notes/<pull request number>.md` to be be used for the release notes instead of the title.

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8108
Reviewed-by: Otto <otto@codeberg.org>
Co-authored-by: Julian Schlarb <julian.schlarb@denktmit.de>
Co-committed-by: Julian Schlarb <julian.schlarb@denktmit.de>

models/fixtures/team.yml

@@ -239,3 +239,15 @@
   num_members: 2
   includes_all_repositories: false
   can_create_org_repo: false
+
+-
+  id: 25
+  org_id: 17
+  lower_name: super-user
+  name: super-user
+  description: ""
+  authorize: 3
+  num_repos: 0
+  num_members: 0
+  includes_all_repositories: 0
+  can_create_org_repo: 0

models/fixtures/team_unit.yml

@@ -329,3 +329,10 @@
   team_id: 22
   type: 3
   access_mode: 1
+
+-
+  id: 84
+  org_id: 17
+  team_id: 25
+  type: 3
+  access_mode: 3

models/fixtures/user.yml

@@ -642,7 +642,7 @@
   num_following: 0
   num_stars: 0
   num_repos: 2
-  num_teams: 3
+  num_teams: 4
   num_members: 4
   visibility: 0
   repo_admin_change_team_access: false