terminal works basically. (#12189)

* terminal works basically.
todo:
- persistent
- sessions restore
- web
- mobile

* missed terminal persistent option change

* android sdk 34 -> 35

* +#![cfg_attr(lt_1_77, feature(c_str_literals))]

* fixing ci

* fix ci

* fix ci for android

* try "Fix Android SDK Platform 35"

* fix android 34

* revert flutter_plugin_android_lifecycle to 2.0.17 which used in rustdesk 1.4.0

* refactor, but break something of desktop terminal (new tab showing loading)

* fix connecting...

src/ipc.rs

@@ -190,6 +190,7 @@ pub enum Data {
         id: i32,
         is_file_transfer: bool,
         is_view_camera: bool,
+        is_terminal: bool,
         peer_id: String,
         name: String,
         authorized: bool,