[BUG] saved filename filled from wrong source #105

Issue Description

The filenames that compressor saves to seem to be not the original video file name, but that of the thumbnail. This loses important information stored in the original filename (e.g. recorded date)

Expected Behaviour

Filename of actual original video file is used in the compressed file name when "original name" chip is part of the file name, as per >settings>general>filename builder

Device Info

Device Manufacturer* (e.g. Samsung):

• Device Model* (e.g. Galaxy S10): Black view Shark 8
• Android Version* (e.g. 12): 13
• Compressor Version* (e.g. 1.1.0): 1.6.2
• Where did you get Compressor from?* (GitHub Releases, IzzyOnDroid/F-Droid, Google Play Store): IzzyOnDroid
• Device Chipset (e.g. Exynos 9820):
• Device Model Number (e.g. SM-G973F):

Screenshots

No response

Logcat

No response

Prerequisites

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• My issue is not listed in [READ FIRST] Features/bugfixes that will NOT be implemented #3
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