15103 [web] Fix right click issues (cla: yes, platform-web)

15104 Roll fuchsia/sdk/core/mac-amd64 from zkzoZ… to Vk6uT… (autoroller: commit, cla: yes)

15106 Fix RectHeightStyle::kMax ascent computation bug (cla: yes)

15110 Roll fuchsia/sdk/core/linux-amd64 from AVtRQ… to MwGkB… (autoroller: commit, cla: yes)

15111 [web] adding windows platform to felt. fixing signal (cla: yes)

15116 Modifies accessibility bridge to populate new node fields in semantic… (cla: yes)

15118 Migrate flutter_runner from flutter_runner::{Thread,Loop} to fml::{Thread,MessageLoop} (cla: yes)