Font! Lightbox tracing app

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Updated app with better text editing handling (multiline, alignment, text size).
Added "Save" and "Share as Image" functionalities.
Swipe lock button to the left or right to change its position.

Added out of memory warning when Saving/Sharing with a large Canvas size settings.

Bug fixes:
Crash on rotate with permission dialog box opened.
Crash 'org.apache.http.legacy' class not found.