Bug 41351: Move cryptosafety l10n files with other Firefox files

Merge Info

Related Issues

• #41351 (closed)
• tor-browser-build#40781 (closed)

Backport Timeline

• Immediate - patchsets for critical bug fixes or other major blocker (e.g. fixes for a 0-day exploit) OR patchsets with trivial changes which do not need testing (e.g. fixes for typos or fixes easily verified in a local developer build)
• Next Minor Stable Release - patchset that needs to be verified in nightly before backport
• Eventually - patchset that needs to be verified in alpha before backport
• No Backport - patchset for the next major stable

Upstream Merging

• Merge to base-browser - typically for !fixups to patches in the base-browser branch, though sometimes new patches as well
  • NOTE: if your changeset includes patches to both base-browser and tor-browser please please make separate merge requests for each part
  • Only the first two commits

Issue Tracking

• Link resolved issues with appropriate Release Prep issue for changelog generation

Change Description

This commit moves the crypto safety prompt strings outside torbutton.

It also removes the need for manifest for New Identity and partly for Security Level (Security Level still uses one for initialization with the browser, so we remove the l10n part).

We'll need tor-browser-build!658 (merged), too.