fix: handle upper, lower and mixed case file extensions

app.py

@@ -713,7 +713,7 @@ with gr.Blocks(
         Upload your mass spectrometry data file (.mgf, .mzml, or .mzxml) and get peptide sequence predictions.
         Choose your prediction method and decoding options.
 
-         This Hugging Face Space is powered by a [ZeroGPU ](https://huggingface.co/docs/hub/en/spaces-zerogpu), which is free but **limited to 5 minutes per day per user**—so if you test with your own files, please use only small files.
+         This Hugging Face Space is powered by a [ZeroGPU](https://huggingface.co/docs/hub/en/spaces-zerogpu), which is free but **limited to 5 minutes per day per user**—so if you test with your own files, please use only small files.
          """,
          elem_classes="feedback"
     )
@@ -721,7 +721,7 @@ with gr.Blocks(
         with gr.Column(scale=1):
             input_file = gr.File(
                 label="Upload Mass Spectrometry File (.mgf, .mzml, .mzxml)",
-                file_types=[".mgf", ".mzml", ".mzxml"],
+                file_types=[".mgf", ".mzml", ".mzxml", ".MGF", ".mzML", ".mzXML", ".MZML", ".MZXML"],
                 scale=1
             )
             mode_selection = gr.Radio(
@@ -818,14 +818,10 @@ with gr.Blocks(
         value="""
 ```
 @article{Eloff2025,
-	title        = {InstaNovo enables diffusion-powered de novo peptide sequencing in large-scale 
-                    proteomics experiments},
-	author       = {Eloff, Kevin and Kalogeropoulos, Konstantinos and Mabona, Amandla and Morell, 
-                    Oliver and Catzel, Rachel and Rivera-de-Torre, Esperanza and Berg Jespersen, 
-                    Jakob and Williams, Wesley and van Beljouw, Sam P. B. and Skwark, Marcin J. 
-                    and Laustsen, Andreas Hougaard and Brouns, Stan J. J. and Ljungars, 
-                    Anne and Schoof, Erwin M. and Van Goey, Jeroen and auf dem Keller, Ulrich and 
-                    Beguir, Karim and Lopez Carranza, Nicolas and Jenkins, Timothy P.},
+	title        = {InstaNovo enables diffusion-powered de novo peptide sequencing in large-scale proteomics experiments},
+	author       = {Eloff, Kevin and Kalogeropoulos, Konstantinos and Mabona, Amandla and Morell, Oliver and Catzel, Rachel and Rivera-de-Torre, Esperanza and Berg Jespersen, 
+                        Jakob and Williams, Wesley and van Beljouw, Sam P. B. and Skwark, Marcin J. and Laustsen, Andreas Hougaard and Brouns, Stan J. J. and Ljungars, 
+                        Anne and Schoof, Erwin M. and Van Goey, Jeroen and auf dem Keller, Ulrich and Beguir, Karim and Lopez Carranza, Nicolas and Jenkins, Timothy P.},
 	year         = 2025,
 	month        = {Mar},
 	day          = 31,