Update file name

Change `fourier.jl` to `operator_kernel.jl`

Author: foldfelis

src/NeuralOperators.jl

@@ -11,7 +11,7 @@ module NeuralOperators
     export DeepONet
 
     include("Transform/Transform.jl")
-    include("fourier.jl")
+    include("operator_kernel.jl")
     include("model.jl")
     include("DeepONet.jl")
     include("subnets.jl")

src/fourier.jl renamed to src/operator_kernel.jl

@@ -4,7 +4,7 @@ using Flux
 
 @testset "NeuralOperators.jl" begin
     include("Transform/Transform.jl")
-    include("fourier.jl")
+    include("operator_kernel.jl")
     include("model.jl")
     include("deeponet.jl")
 end