new structure for transcription engine

- found problems with mps
- integrated jinja2 templates for rendering (.tex?)
- raw ui & bad structure

transcription/engines/base_engine.py

@@ -0,0 +1,30 @@
+import torch
+from abc import ABC, abstractmethod
+
+class BaseEngine(ABC):
+    def __init__(
+        self,
+        modelName: str,
+        language: str,
+        dType: torch.dtype,
+        device: str
+    ):
+        self.modelName = modelName
+        self.device = device
+        self.language = language
+        self.dType = dType
+    
+    @abstractmethod
+    def loadModel(self) -> None:
+        pass
+
+    @abstractmethod
+    def unloadModel(self) -> None:
+        pass
+
+    @abstractmethod
+    def transcribeBatch(
+        self, 
+        batch
+    ) -> str:
+        pass