debugger: Debug sessions rerun build tasks by default when restarting (#33724)

We reworked the debug modal spawning to use the task context from past
debug sessions when spawning a debug scenario based on task inventory
history.

We changed restart session keybinding to rerun session too.

Closes #31369

Release Notes:

- Restarting a debug session now reruns build tasks that are associated
with the session

---------

Co-authored-by: Cole Miller <cole@zed.dev>

assets/keymaps/default-linux.json

@@ -34,7 +34,7 @@
       "ctrl-q": "zed::Quit",
       "f4": "debugger::Start",
       "shift-f5": "debugger::Stop",
-      "ctrl-shift-f5": "debugger::Restart",
+      "ctrl-shift-f5": "debugger::RerunSession",
       "f6": "debugger::Pause",
       "f7": "debugger::StepOver",
       "ctrl-f11": "debugger::StepInto",
@@ -598,7 +598,7 @@
       // "foo-bar": ["task::Spawn", { "task_name": "MyTask", "reveal_target": "dock" }]
       // or by tag:
       // "foo-bar": ["task::Spawn", { "task_tag": "MyTag" }],
-      "f5": "debugger::RerunLastSession"
+      "f5": "debugger::Rerun"
     }
   },
   {