Rework webpack filepath to allow symlinks and remove character combin…

…ation collision issues (eg js)

Types of changes

[x] Bugfix (non-breaking change which fixes an issue)
[ ] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Description of Change

Reworked the webpack file lookup logic to avoid using any special character combinations in the path that were causing issues, and updated so symlinks to outside files can be properly resolved.

Issues Solved

Closes #10791

Checklist

I targeted one of these branches:
- [ ] dev/7.6.x (under development): features, bugfixes not covered below
- [x] dev/7.5.x (main support): regressions, crashing bugs, security issues, major bugs in new features
- [ ] dev/6.2.x (extended support): major security issues, data loss issues
[ ] I added a changelog in arches/releases
[ ] I submitted a PR to arches-docs (if appropriate)
[ ] Unit tests pass locally with my changes
[ ] I added tests that prove my fix is effective or that my feature works
[ ] My test fails on the target branch

Accessibility Checklist

Developer Guide

Topic	Changed	Retested
Color contrast
Form fields
Headings
Links
Keyboard
Responsive Design
HTML validation
Screen reader

Ticket Background

Sponsored by: Self Funded
Found by: @bferguso
Tested by: @bferguso
Designed by: @bferguso

Further comments

Have not done any ancillary work to complete this PR. Submitting for feedback. Collapsed JS, Template and Image file lookup functions into a single function as most of the logic was the same. Didn't make changes to the vue lookup function as I don't have any vue components to test against.

archesproject / arches