[ACA-2062] toolbar updates (#847)

* john-doclist-actions-ACA-2062

* add “simpletask” to ignore list

* fix e2e

* add workaround for Favorites

* isSharedFile state evaluator

* update docs

* update store on share file modal closed

* share action definition

* rename evaluator

* context menu rule

* check for file selection

* use another selector

* update tests

* viewer share action

* fix e2e tests

* update viewer button ids

src/app/extensions/core.extensions.module.ts

@@ -113,6 +113,7 @@ export class CoreExtensionsModule {
       'app.selection.first.canUpdate': app.canUpdateSelectedNode,
       'app.selection.file': app.hasFileSelected,
       'app.selection.file.canShare': app.canShareFile,
+      'app.selection.file.isShared': app.isShared,
       'app.selection.library': app.hasLibrarySelected,
       'app.selection.isPrivateLibrary': app.isPrivateLibrary,
       'app.selection.hasLibraryRole': app.hasLibraryRole,