Move Quick-Add Task Bar to the bottom on mobile

Feature Discussion
1

Option to move Quick-Add Task Bar to the bottom on mobile/narrow viewports

The Problem:
Currently, when using Vikunja on mobile devices (like Safari/Chrome on iOS), the task entry bar sits permanently at the top of the Overview and project pages. Because modern smartphones have tall screens, reaching the top of the viewport with one hand to type a quick task is ergonomically difficult. [1]

Proposed Solution:
Introduce a setting (or automatic responsive toggle) that shifts the quick-add input bar to the bottom of the viewport specifically on mobile screen widths (e.g., @media (max-width: 768px)).

Ideally, it could be implemented as either:

  1. An automatic styling adjustment that respects mobile “thumb-zone” ergonomics.

  2. A toggle switch in Settings > General called “Position quick-add bar at the bottom on mobile”.

Benefits:

  • Greatly improves the mobile web app experience for self-hosters using smartphones.

  • Makes quick-task capturing much faster and frictionless when on the go.

  • Aligns with modern mobile design paradigms (like Safari shifting its address bar to the bottom).