Generate deletion log

[laurent22]

Now that we are logging deletion actions, we should add an item, under the Help menu to generate a deletion log.

It would parse the existing log, and extract only deletion-related items. Then it would output a file with just those items.

Needs to work on both mobile and desktop.

[personalizedrefrigerator]

At least on mobile, this should be possible by opening the log screen with a DeleteAction filter:

We currently do something similar for plugin errors:

joplin/packages/app-mobile/components/screens/ConfigScreen/plugins/utils/usePluginCallbacks.ts

Line 62 in dfdc2fd

void NavService.go('Log', { defaultFilter: pluginId });