Fix trailing newline in FastModel.from_pretrained cell across Gemma 4 Text notebooks (#231)

The FastModel.from_pretrained code cell in all four Gemma 4 Text
notebooks ended with a trailing newline after the closing paren:

    )\n

This causes Jupyter/Colab to render a dangling blank line below the
closing paren. Every other FastModel.from_pretrained cell in the repo
(48 of 52) already ends with just ')' and no trailing newline. This
brings the four Gemma 4 Text notebooks into line with the rest.

Affected notebooks:
  nb/Gemma4_(26B_A4B)-Text.ipynb
  nb/Gemma4_(31B)-Text.ipynb
  nb/Gemma4_(E2B)-Text.ipynb
  nb/Gemma4_(E4B)-Text.ipynb

Pure whitespace fix: 4 files, 4 lines changed total, no logic or
indentation touched.

Author: danielhanchen

nb/Gemma4_(26B_A4B)-Text.ipynb

@@ -382,7 +382,7 @@
         "    load_in_4bit = True,  # 4 bit quantization to reduce memory\n",
         "    full_finetuning = False, # [NEW!] We have full finetuning now!\n",
         "    # token = \"YOUR_HF_TOKEN\", # HF Token for gated models\n",
-        ")\n"
+        ")"
       ]
     },
     {

nb/Gemma4_(31B)-Text.ipynb

@@ -382,7 +382,7 @@
         "    load_in_4bit = True,  # 4 bit quantization to reduce memory\n",
         "    full_finetuning = False, # [NEW!] We have full finetuning now!\n",
         "    # token = \"YOUR_HF_TOKEN\", # HF Token for gated models\n",
-        ")\n"
+        ")"
       ]
     },
     {

nb/Gemma4_(E2B)-Text.ipynb

@@ -332,7 +332,7 @@
         "    load_in_4bit = False,  # 4 bit quantization to reduce memory\n",
         "    full_finetuning = False, # [NEW!] We have full finetuning now!\n",
         "    # token = \"YOUR_HF_TOKEN\", # HF Token for gated models\n",
-        ")\n"
+        ")"
       ]
     },
     {