move to folder -> search folders uses filter-icon instead of search-icon

[MarcusWolschon]

Checklist

• I have used the search function to see if someone else has already submitted the same bug report.
• I will describe the problem with as much detail as possible.

App version

6.901

Where did you get the app from?

None

Android version

14

Device model

No response

Steps to reproduce

1. open any message
2. select "Umsortieren"->"Verschieben" (German)

Expected behavior

The icon in the ActionBar to filter down the list of folders to only those matching a search string,
should be the Material Design SEARCH (or FILTER) icon.

Actual behavior

The icon in the ActionBar to filter down the list of folders is the Material Design SORT icon.

Logs

No response

[wmontwe]

Indeed, the icon used here is not the correct one. We're in the process of updating the icon with the next design iteration.