[HTML5] Clarify editor PWA manifest.json
[HTML5] Clarify editor PWA manifest.json

Update name and description to clarify it's the web version.

(cherry picked from commit ecb792b1da1af1ba0eac47bc4d04f78ee2ffb477)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot