[Minor usability issue] Editor.'s search does not utilise the full screen width in landscape orientation

[Olf0]

Editor.'s search function does not utilise the full screen width in landscape orientation (in contrast to portrait orientation, where Editor. adapts the width of the search function correctly). See . Tested with Editor. v0.8 on a Jolla 1 phone under SailfishOS 2.1.0.11