Neue Änderungen

use headers and numbered lists for better visibility of steps

minor edits

change Firefox reference to Thunderbird

adding the media troubleshooting steps

initial content

Desktop Firefox->Firefox for desktop; of using->to use (minor)

updated link to renamed article (minor)

updated link to renamed article (minor)

(edit to pending revison) updated link to renamed article

updated link to renamed article (minor)

Content about browser data and encrypted data moved to Reset section, FAQs->Frequently asked questions: H2->H1; (collapsed questions: H3->H2)

Keywords deleted, other minor edits

upto -> up to

minor edits and reversing image change (paragraph is on unpinning from start, not taskbar)

link to "Gmail and Thunderbird for Android"

WIP, please don't localize, needs approval from Philipp. see https://github.com/thunderbird/android-knowledgebase-issues/issues/12#issuecomment-2506612067

minor change (different spellings of strings for Android and iOS in product)

minor update