debugger: Add memory view (#33955)

This is mostly setting up the UI for now; I expect it to be the biggest
chunk of work.

Release Notes:

- debugger: Added memory view

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>
Co-authored-by: Mikayla Maki <mikayla@zed.dev>

crates/icons/src/icons.rs

@@ -163,6 +163,7 @@ pub enum IconName {
     ListTree,
     ListX,
     LoadCircle,
+    LocationEdit,
     LockOutlined,
     LspDebug,
     LspRestart,