Fix display name consistency in flamegraph toggle

Rename "Full Paths" to "File Paths", remove basename-only
.split('/').pop() so tooltip, hotspots, and search all show the
same path in file-paths mode.

Author: ivonastojanovic

Lib/profiling/sampling/_flamegraph_assets/flamegraph.js

@@ -95,7 +95,7 @@ function getDisplayName(moduleName, filename) {
   if (useModuleNames) {
     return moduleName || filename;
   }
-  return filename ? filename.split('/').pop() : filename;
+  return filename;
 }
 
 function selectFlamegraphData() {

Lib/profiling/sampling/_flamegraph_assets/flamegraph_template.html

@@ -118,7 +118,7 @@ <h3 class="section-title">View Mode</h3>
                 </div>
 
                 <div class="toggle-switch" id="toggle-path-display" title="Toggle between module names and full file paths" tabindex="0">
-                  <span class="toggle-label" data-text="Full Paths">Full Paths</span>
+                  <span class="toggle-label" data-text="File Paths">File Paths</span>
                   <div class="toggle-track on"></div>
                   <span class="toggle-label active" data-text="Module Names">Module Names</span>
                 </div>

Lib/test/test_profiling/test_sampling_profiler/test_collectors.py

@@ -435,14 +435,14 @@ def test_flamegraph_collector_basic(self):
         strings = data.get("strings", [])
         name = resolve_name(data, strings)
         self.assertTrue(name.startswith("Program Root: "))
-        self.assertIn("func2 (file:20)", name)
+        self.assertIn("func2 (file.py:20)", name)
         label = strings[data["label"]]
         self.assertTrue(label.startswith("Program Root: "))
         self.assertEqual(data["self"], 0)  # non-leaf: no self time
         children = data.get("children", [])
         self.assertEqual(len(children), 1)
         child = children[0]
-        self.assertIn("func1 (file:10)", resolve_name(child, strings))
+        self.assertIn("func1 (file.py:10)", resolve_name(child, strings))
         self.assertEqual(child["value"], 1)
         self.assertEqual(child["self"], 1)  # leaf: all time is self