Prateek Sunal 5670de7e01 [mob] lint fixes (#5298) ...

## Description

From 44 issues down to 7 issues for lint. Leftovers are related to
[`isPasswordInput`](2ccd92519b/mobile/lib/ui/components/text_input_widget.dart (L41))
and [`flutter_map`](https://pub.dev/packages/flutter_map) deprecated
params.

<img width="995" alt="image"
src="https://github.com/user-attachments/assets/a1f164bd-6be1-477f-87b2-9a28ab3adfec"
/>


## Tests

2025-03-13 09:49:14 +05:30

..

input_formatter.dart

Move into mobile/

2024-03-01 12:25:37 +05:30

list.dart

Move into mobile/

2024-03-01 12:25:37 +05:30

ml_linalg_extensions.dart

[mobile] Patch faces mvp from photos-app repo

2024-03-08 09:36:03 +05:30

stop_watch.dart

[mob] Switch to better pkg for user-agent

2024-10-17 17:15:03 +05:30

user_extension.dart

[mob] lint fixes (#5298)

2025-03-13 09:49:14 +05:30