[Bugfix release] Add globals.browser to eslint config for TS files

[mkszepp]

After updating ember-cli from 6.9 to 6.10 in ember-basic-dropdown docs, i was running into this issue:

https://github.com/cibernox/ember-basic-dropdown/actions/runs/21328814063/job/61390342954?pr=1060#step:7:45

[lint:js] 
[lint:js] /home/runner/work/ember-basic-dropdown/ember-basic-dropdown/docs/app/components/snippets/custom-position-1.gts
[lint:js]   19:18  error  'window' is not defined  no-undef
[lint:js] 
[lint:js] /home/runner/work/ember-basic-dropdown/ember-basic-dropdown/docs/app/components/snippets/custom-position-2.gts
[lint:js]   26:18  error  'window' is not defined  no-undef
[lint:js] 
[lint:js] /home/runner/work/ember-basic-dropdown/ember-basic-dropdown/docs/app/components/snippets/dropdown-events-3.gts
[lint:js]   14:7  error  'alert' is not defined  no-undef
[lint:js] 
[lint:js] /home/runner/work/ember-basic-dropdown/ember-basic-dropdown/docs/app/components/snippets/trigger-events-2.gts
[lint:js]   7:5  error  'alert' is not defined  no-undef
[lint:js] 
[lint:js] /home/runner/work/ember-basic-dropdown/ember-basic-dropdown/docs/app/templates/public-pages.gts
[lint:js]   36:31  error  'document' is not defined  no-undef
[lint:js]   37:5   error  'document' is not defined  no-undef
[lint:js] 

This PR is fixing the issue