Update Flutter-Web-Triage.md (#152191)

Separate P0 triage from P1 triage.

Author: yjbanov

docs/triage/Flutter-Web-Triage.md

@@ -11,6 +11,7 @@ When triaging web issues follow the following process:
   - [kevmoo](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3Ateam-web+label%3AP2%2CP3+assignee%3Akevmoo)
   - [mdebbar](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3Ateam-web+label%3AP2%2CP3+assignee%3Amdebbar)
   - [yjbanov](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3Ateam-web+label%3AP2%2CP3+assignee%3Ayjbanov)
-- The list of [P0 and P1 issues](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3Ateam-web+label%3AP1%2CP0) should be manageable (<30 issues)
+- All [P0 issues](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3Ateam-web+label%3AP0) are assigned and being worked on.
+- The list of [P1 issues](https://github.com/flutter/flutter/issues?q=is%3Aopen+is%3Aissue+label%3Ateam-web+label%3AP1) should be manageable (<30 issues)
 - The [list of open PRs](https://github.com/pulls?q=is%3Aopen+is%3Apr+archived%3Afalse+user%3Aflutter+sort%3Aupdated-asc+label%3Aplatform-web) should be manageable (<15).
 - Triage [untriaged issues](https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3Ateam-web%2Cfyi-web+-label%3Atriaged-web+no%3Aassignee+-label%3A%22will+need+additional+triage%22+sort%3Aupdated-asc+-label%3A%22waiting+for+customer+response%22+)