Refactor FXIOS [Typos] Fixing 78 typos across the repo

[yohaann196]

📜 Tickets

N/A

💡 Description

Fixed minor typos and grammatical errors across comments, string literals, documentation, and YAML configuration files. No functional code was changed.

Examples of corrections made:

• appearence → appearance, portait → portrait, deffered → deferred
• Wether → Whether, Unkown → Unknown, subequent → subsequent
• trough → through, everytime → every time, incase → in case
• occured → occurred, downlaod → download, miliseconds → milliseconds
• indicies → indices, vitualenv → virtualenv, enbaled → enabled

🎥 Demos

N/A — no UI changes.

📝 Checklist

• I filled in the ticket numbers and a description of my work
• I updated the PR name to follow our PR naming guidelines
• I ensured unit tests pass and wrote tests for new code
• If working on UI, I checked and implemented accessibility (Dynamic Text and VoiceOver)
• If adding telemetry, I read the data stewardship requirements and will request a data review
• If adding or modifying strings, I read the guidelines and will request a string review from l10n
• If needed, I updated documentation and added comments to complex code.

[yohaann196]

A few value: fields in Strings.swift were corrected for spelling. Happy to get an l10n review if needed, but since these are typo fixes and the keys are unchanged idk if its required

[yohaann196]

should be ready to merge now.