feature request: Disable pull-to-refresh in compose view

#### General information

* **App version:** 1.3.5
* **System:** LineageOS
* **Pod:** self-hosted pod (irrelevant to request)

#### Description
When composing a new post in dandelion, a scrolling pull can result in an unintended pull-to-refresh leading to loss of all composed text and uploaded media.
Would it be possible to disable the pull-to-refresh gesture in this view, as it is of no use anyways?

Start by locating the Android compose view and the pull-to-refresh implementation. Verify how the gesture is enabled for that view, then test composing with a scroll gesture to confirm that refresh no longer occurs and entered text or uploaded media is preserved.

Written by the indexing model from the issue text.