fix(ci): broken CI & code stuff after project name change

[adhirajsinghchauhan]

We should've reviewed #124 more carefully, as most of this PR is in reaction to it.

Fixed:

• feat: rename project name to Universal Android Debloater Next Generation (UAD-ng) #124 changed cache/log directory to uad-ng, which I don't think we wanted (can be argued as bloat).
  Continuing to use uad would be preferable as users would have to manually delete the old one otherwise.
• The build_artifacts & release workflows were broken because they still used uad_gui.
• Log-level configuration for our own crate (uad) still used uad_gui

Additional changes in this PR:

• release workflow will no longer run at all on a normal push
  This workflow just creates pre-releases if we've pushed a tag. However, with the previous configuration, only the sub-step of creating a release was skipped, but the other steps for building & downloading artifacts were running every single time even if it was a normal push (i.e. not a tag). This was wasteful and noisy.
• fine-tuned ci workflow path configuration
  Earlier, this would run even if JSON files like icons.json and uad_lists.json changed, but neither of these files are part of the build itself. This was also wasteful/noisy.