fix: Navigation table entries UI issues

[enjeck]

fixes #1191

• [x] The counter (3 rows) is cut off, we should probably just use the number as it is done in other apps without the word rows

• [x] text and icon color is inconsistent in dark mode (should use the proper css var for text on primary)

Before

After

[enjeck]

• [x] Check if the issue affects views too, and fix if so

[juliusknorr]

It looks like you still build your local app with either outdated server code or node dependencies on tables, as it still uses the old border radius. Could you check that? Just to make sure the screenshots actually show what we want to go for with Nextcloud 30