fix: set onlyAutoAttachExplicit to true by default

This is a new setting that configures whether we'll _only_ attach to
processes that explicitly/already have `--inspect`.

With the new magical js-debug powers, we set auto attach to attach to
every Node process. Users with auto attach turned on in a previous
release, however, suddenly were debugging a lot of things that they
didn't want to (e.g. git precommit hooks or the `code` CLI). For myself
I had gotten used to toggling auto attach when I wanted to, but this is
a muscle that existing users don't have.

In this change we set `onlyAutoAttachExplicit` to be on by default,
matching the previous auto attach behavior. Users who want the to attach
to everything can toggle it off -- or use the debug terminal.

src/build/generate-contributions.ts

@@ -1033,7 +1033,7 @@ const configurationSchema: ConfigurationAttributes<IConfigurationTypes> = {
   },
   [Configuration.OnlyAutoAttachExplicit]: {
     type: 'boolean',
-    default: false,
+    default: true,
     markdownDescription: refString('configuration.onlyAutoAttachExplicit'),
   },
 };

src/build/strings.ts

@@ -251,7 +251,7 @@ const strings = {
   'configuration.autoExpandGetters':
     'Configures whether property getters will be expanded automatically. If this is false, the getter will appear as `get propertyName` and will only be evaluated when you click on it.',
   'configuration.onlyAutoAttachExplicit':
-    'If false (default), we will debug all processes started while Auto Attach is on. If this setting is toggled to true, only processes started with --inspect will be debugged.\n\nNote: you may need to toggle Auto Attach to "disabled" and then "on" again for this setting to take effect.',
+    'If true (default), only processes started with --inspect will be debugged. If this setting is toggled to false, we will debug all processes started while Auto Attach is on.\n\nNote: you may need to toggle Auto Attach to "disabled" and then "on" again for changes in this setting to take effect.',
 
   'profile.start': 'Take Performance Profile',
   'profile.stop': 'Stop Performance Profile',