docs: Improved documentation and removed text that implies iOS only

[breautek]

Platforms affected

None

What does this PR do?

• Updates the documentation to remove to remove "on iOS..." which implied that the preference only applied to iOS devices.
• Made note of android quirks where applicable.

What testing has been done on this change?

Manual review of documentation.

Checklist

• Reported an issue in the JIRA database
• Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• Added automated test coverage as appropriate for this change.

closes #113

[breautek]

Further changes may happen to this PR depending on what is found in #122