Update triage docs (#181193)

* Turns down `team-games`. Already confirmed triage bot updated and
triage team notified.
* Updates text input and guidance links wrt selection issues.
* Adds omitted teams from untriaged link

## Pre-launch Checklist

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- [x] I read the [Tree Hygiene] wiki page, which explains my
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we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
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[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
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docs/triage/README.md

@@ -1,6 +1,6 @@
 # Primary issue triage process
 
-The process of triaging new incoming bugs consists of processing the list of [issues without team-* labels, with no assignees, and not labeled `will need additional triage`](https://github.com/flutter/flutter/issues?q=is%3Aissue%20is%3Aopen%20no%3Aassignee%20-label%3A%22will%20need%20additional%20triage%22%20-label%3Ateam-codelabs%2Cteam-ecosystem%2Cteam-infra%2Cteam-engine%2Cteam-framework%2Cteam-ios%2Cteam-tool%2Cteam-web%2Cteam-linux%2Cteam-macos%2Cteam-windows%2Cteam-design%2Cteam-android%2Cteam-games%2Cteam-text-input) as described in this section, so as to make that list empty.
+The process of triaging new incoming bugs consists of processing the list of [issues without team-* labels, with no assignees, and not labeled `will need additional triage`](https://github.com/flutter/flutter/issues?q=is%3Aissue%20is%3Aopen%20no%3Aassignee%20-label%3A%22will%20need%20additional%20triage%22%20-label%3Ateam-devexp%2Cteam-accessibility%2Cteam-codelabs%2Cteam-ecosystem%2Cteam-infra%2Cteam-engine%2Cteam-framework%2Cteam-ios%2Cteam-tool%2Cteam-web%2Cteam-linux%2Cteam-macos%2Cteam-windows%2Cteam-design%2Cteam-android%2Cteam-text-input) as described in this section, so as to make that list empty.
 
 _See also: [Issue triage reports](https://github.com/flutter/flutter/wiki/Issue-triage-reports)_
 
@@ -74,11 +74,12 @@ In general the flow chart for team assignment is as follows, stopping as soon as
 - If it's about accessibility (e.g. `Semantics`, `talkBack`, `voiceOver`), add `team-accessibility`.
   - If it's specific to a single platform, also add that platform's fyi label.
 - If it's about Cupertino or Material Design, add `team-design`.
-- If it's about text fields or other user-facing text input issues, add `team-text-input`.
+- If it's about text fields or other user-facing text field, text input, or text selection issues, add `team-text-input`.
   - If it's specific to a single platform, also add that platform's fyi label.
+  - If it's specific to text fields or text input, also add `a: text input`.
+  - If it's specific to text selection or selectable region also add `f: selection`.
 - If it's specific to a single platform, add that platform's team (`team-android`, `team-ios`, `team-linux`, `team-macos`, `team-web`, or `team-windows`).
   - If the issue is about a first-party package, also add `fyi-ecosystem`.
-- If it's about one of our games templates, add `team-games`.
 - If it's about the Flutter engine, add `team-engine`.
 - If it's about the Flutter framework, add `team-framework`.
 - If it's about the Flutter tool, add `team-tool`.
@@ -258,12 +259,6 @@ In addition, consider these issues that fall under another team's triage, but ar
 - [Framework-owned Package PR list](https://github.com/flutter/packages/pulls?q=is%3Aopen+is%3Apr+label%3A%22p%3A+two_dimensional_scrollables%22%2C%22p%3A+go_router%22%2C%22p%3A+go_router_builder%22%2C%22p%3A+google_fonts%22%2C%22p%3A+animation%22%2C%22p%3A+animations%22%2C%22p%3A+cupertino_icons%22%2C%22p%3A+flutter_lints%22+)
 - [Incoming issue list](https://github.com/flutter/flutter/issues?q=is%3Aissue%20is%3Aopen%20label%3Ateam-framework%2Cfyi-framework%20-label%3Atriaged-framework%20-label%3A%22will%20need%20additional%20triage%22%20-label%3A%22waiting%20for%20customer%20response%22%20sort%3Aupdated-desc)
 
-### Games team (`team-games`)
-
-- [Incoming issue list](https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3Ateam-games%2Cfyi-games+-label%3Atriaged-games+no%3Aassignee+-label%3A%22will+need+additional+triage%22+sort%3Aupdated-asc)
-- [P0 list](https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3Ateam-games+label%3AP0+sort%3Aupdated-asc)
-- [PRs awaiting review](https://github.com/flutter/games/pulls?q=is%3Apr+is%3Aopen+sort%3Aupdated-asc)
-
 ### Infrastructure team (`team-infra`)
 
 See the [Flutter Infra Team Triage](./Infra-Triage.md) page.
@@ -290,8 +285,8 @@ PRs are reviewed weekly across the framework, packages, and engine repositories:
 
 ### Text Input team (`team-text-input`)
 
-- [P0 list](https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22a%3A+text+input%22%2Cteam-text-input%2Cfyi-text-input+sort%3Aupdated-asc+label%3AP0+)
-- [PR list](https://github.com/flutter/flutter/pulls?q=is%3Aopen+is%3Apr+sort%3Acreated-desc+draft%3Afalse+label%3A%22a%3A+text+input%22%2Cteam-text-input%2Cfyi-text-input+)
+- [P0 list](https://github.com/flutter/flutter/issues?q=is%3Aissue%20is%3Aopen%20label%3A%22a%3A%20text%20input%22%2C%22f%3A%20selection%22%2Cteam-text-input%2Cfyi-text-input%20sort%3Aupdated-asc%20label%3AP0)
+- [PR list](https://github.com/flutter/flutter/pulls?q=is%3Aopen+is%3Apr+sort%3Acreated-desc+draft%3Afalse+label%3A%22a%3A+text+input%22%2C%22f%3A+selection%22%2Cteam-text-input%2Cfyi-text-input)
 - [Incoming issue list](https://github.com/flutter/flutter/issues?q=is%3Aopen%20is%3Aissue%20label%3Ateam-text-input%2Cfyi-text-input%20no%3Aassignee%20-label%3Atriaged-text-input%20-label%3A%22waiting%20for%20customer%20response%22)
 
 ### Flutter Tool team (`team-tool`)