A set of small fixes (#16849)

* Linux Clippy lints fixed
* Zed local tasks are now simpler to rerun
* Zed's `release-fast` build profile keeps the debug info so it's
possible to properly debug things without altering the sources

Release Notes:

- N/A

.zed/tasks.json

@@ -2,11 +2,15 @@
   {
     "label": "clippy",
     "command": "./script/clippy",
-    "args": []
+    "args": [],
+    "allow_concurrent_runs": true,
+    "use_new_terminal": false
   },
   {
     "label": "cargo run --profile release-fast",
     "command": "cargo",
-    "args": ["run", "--profile", "release-fast"]
+    "args": ["run", "--profile", "release-fast"],
+    "allow_concurrent_runs": true,
+    "use_new_terminal": false
   }
 ]