feat: expose drive labels to userspace, render in Files

kernel/src/Fs/Ramdisk.cpp

@@ -38,6 +38,10 @@ namespace Fs::Ramdisk {
         return n;
     }
 
+    const char* GetLabel() {
+        return "Ramdisk";
+    }
+
     static bool StartsWith(const char* str, const char* prefix) {
         while (*prefix) {
             if (*str != *prefix) return false;