Everywhere: Add sv suffix to strings relying on StringView(char const*)

Each of these strings would previously rely on StringView's char const*
constructor overload, which would call __builtin_strlen on the string.
Since we now have operator ""sv, we can replace these with much simpler
versions. This opens the door to being able to remove
StringView(char const*).

No functional changes.

Kernel/FileSystem/Inode.h

@@ -109,7 +109,7 @@ protected:
     void did_modify_contents();
     void did_delete_self();
 
-    mutable Mutex m_inode_lock { "Inode" };
+    mutable Mutex m_inode_lock { "Inode"sv };
 
 private:
     FileSystem& m_file_system;