App architecture modifications.

Now GUI and the app itself is divided into two different binaries.
The app also provides system tray icon.
Whereas the GUI can be used to configure the app.

src-tauri/src/vosk.rs

@@ -1,61 +0,0 @@
-use std::sync::Mutex;
-use vosk::{DecodingState, Model, Recognizer};
-
-use crate::config::VOSK_MODEL_PATH;
-
-lazy_static! {
-    static ref MODEL: Model = Model::new(VOSK_MODEL_PATH).unwrap();
-}
-
-lazy_static! {
-    static ref RECOGNIZER: Mutex<Recognizer> =
-        Mutex::new(Recognizer::new(&MODEL, 16000.0).unwrap());
-}
-
-pub fn init_vosk() {
-    RECOGNIZER.lock().unwrap().set_max_alternatives(10);
-    RECOGNIZER.lock().unwrap().set_words(true);
-    RECOGNIZER.lock().unwrap().set_partial_words(true);
-}
-
-pub fn recognize(data: &[i16], include_partial: bool) -> Option<String> {
-    let state = RECOGNIZER.lock().unwrap().accept_waveform(data);
-
-    match state {
-        DecodingState::Running => {
-            if include_partial {
-                Some(RECOGNIZER.lock().unwrap().partial_result().partial.into())
-            } else {
-                None
-            }
-        }
-        DecodingState::Finalized => {
-            // Result will always be multiple because we called set_max_alternatives
-            Some(
-                RECOGNIZER
-                    .lock()
-                    .unwrap()
-                    .result()
-                    .multiple()
-                    .unwrap()
-                    .alternatives
-                    .first()
-                    .unwrap()
-                    .text
-                    .into(),
-            )
-        }
-        DecodingState::Failed => None,
-    }
-}
-
-// pub fn stereo_to_mono(input_data: &[i16]) -> Vec<i16> {
-//     let mut result = Vec::with_capacity(input_data.len() / 2);
-//     result.extend(
-//         input_data
-//             .chunks_exact(2)
-//             .map(|chunk| chunk[0] / 2 + chunk[1] / 2),
-//     );
-
-//     result
-// }