Replaced by vscode.window.onDidWriteTerminalData

Fixes #78574

* experiment with running macOS integration test against real build

* echo command

* more tests

* Revert "more tests"

This reverts commit b07bde89befdc27b1e8be5c6cbc8bfa1a379f895.

* test

* fix script

* fix build

* fix tests

* fix build

* fix build

* conditionally enable test for remote

* adopt for linux and windows

* disable failing test

* fix build

* windows - echo off

* fix variable check

* fix path

* fix compile

* echo off

* mac polish

Fixes #79242

As discussed, renames `toWebviewResource` to `asWebviewUri` to be consistent with the `asAbsolutePath` api naming

Fixes #78502

Part of #69865

Diff: https://github.com/xtermjs/xterm.js/compare/378982a...689fb6b

Changes:

- Fix NPE when disposing detached terminals

Fixes microsoft/vscode-remote-release#1033

Part of #77160

Fix #77813

Part of #70978

Part of #77228

For #76489

Fixes #75689