[dap] Don't wait for appStarted before responding to launch/attach + don't call app.stop for unstarted app (#109386)

This reverts commit 91fdbfa7.

* fa86e2d82 Zip FlutterMacOS.framework. (flutter/engine#35623)

* ce987d4cb Roll Dart SDK from 859e9bbe6f0a to 691aa6246705 (1 revision) (flutter/engine#35672)

* ab3569684 Roll Skia from d965473d8719 to f0593b093a72 (2 revisions) (flutter/engine#35675)

* 474082412 [fuchsia] Document `found != flatland_views.end()`. (flutter/engine#35607)

* c6c872137 Roll Skia from f0593b093a72 to 8acbc3ce4e84 (7 revisions) (flutter/engine#35676)

* 741709107 Set temporary GN arg for Skia roll (flutter/engine#35651)

* 1c5c7052b Revert "Zip FlutterMacOS.framework. (#35623)" (flutter/engine#35680)

* 983e3abda [Impeller] Fix matrix printing (flutter/engine#35656)

* c9876d7a3 Roll Fuchsia Mac SDK from XrmzJCUPGAd4klJlw... to uiiEV3lEQoosICL43... (flutter/engine#35677)

* Add covariant to `ThemeExtension.lerp`

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