Check more of the stream when looking for commands after inline image (issue 19494)

Currently we only check `followingBytes`, which turns out to be too short to find e.g. valid transform (cm) commands with decimal arguments.

src/core/parser.js

@@ -248,8 +248,12 @@ class Parser {
           }
           // Check that the "EI" sequence isn't part of the image data, since
           // that would cause the image to be truncated (fixes issue11124.pdf).
+          //
+          // Check more than the `followingBytes` to be able to find operators
+          // with multiple arguments, e.g. transform (cm) with decimal arguments
+          // (fixes issue19494.pdf).
           const tmpLexer = new Lexer(
-            new Stream(followingBytes.slice()),
+            new Stream(stream.peekBytes(5 * n)),
             knownCommands
           );
           // Reduce the number of (potential) warning messages.

test/pdfs/issue19494.pdf.link

@@ -0,0 +1 @@
+https://github.com/user-attachments/files/18810079/VERAPDF-1335-InlineImage.pdf

test/test_manifest.json

@@ -5617,6 +5617,15 @@
     "rounds": 1,
     "type": "eq"
   },
+  {
+    "id": "issue19494",
+    "file": "pdfs/issue19494.pdf",
+    "md5": "2ec2ccbe6aa7e622ef981ca5ca443d55",
+    "link": true,
+    "rounds": 1,
+    "type": "eq",
+    "lastPage": 1
+  },
   {
     "id": "issue11768",
     "file": "pdfs/issue11768_reduced.pdf",