Add french, italian, portuguese, spanish, german (#155)

The french 6 layers variant wasn't included because it's not good enough
yet. Use the `french_24l` variant for now.

pocket_tts/modules/resample.py

@@ -10,11 +10,14 @@ class ConvDownsample1d(nn.Module):
     with a kernel size of twice the stride.
     """
 
-    def __init__(self, stride: int, dimension: int):
+    def __init__(self, stride: int, dimension: int, out_dimension: int | None = None):
         super().__init__()
+        if out_dimension is None:
+            out_dimension = dimension
+
         self.conv = StreamingConv1d(
             dimension,
-            dimension,
+            out_dimension,
             kernel_size=2 * stride,
             stride=stride,
             groups=1,
@@ -31,10 +34,12 @@ class ConvTrUpsample1d(nn.Module):
     Upsample by some integer amount `stride` using transposed convolutions.
     """
 
-    def __init__(self, stride: int, dimension: int):
+    def __init__(self, stride: int, dimension: int, in_dimension: int | None = None):
         super().__init__()
+        if in_dimension is None:
+            in_dimension = dimension
         self.convtr = StreamingConvTranspose1d(
-            dimension,
+            in_dimension,
             dimension,
             kernel_size=2 * stride,
             stride=stride,