This pull request adds support for generating app icons from a PNG file
in addition to the existing `.app` bundle method. The changes update
both the documentation and the `generate-icons.sh` script to allow users
to specify either an app bundle or a PNG file, improving flexibility for
icon generation.
**Documentation and usage improvements:**
* Updated `README.md` to document the new `-i` option for PNG input,
clarified required arguments, and added usage examples for both `.app`
bundles and PNG files.
**Script enhancements for PNG support:**
* Modified argument parsing in `generate-icons.sh` to accept a new `-i`
option for PNG files, and added validation to ensure either `-a` or `-i`
is provided (but not both).
[[1]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44R295-R302)
[[2]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44L312-R381)
* Added logic to handle PNG input: verifies the PNG file, derives
component and display names from the slug, and integrates PNG processing
alongside the existing `.app` bundle workflow.
[[1]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44L312-R381)
[[2]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44L412)
[[3]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44R508-R519)
* Adjusted SVG and component name generation to work appropriately for
both input methods, ensuring correct naming and file output.
[[1]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44L465-R548)
[[2]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44L481-L483)
[[3]](diffhunk://#diff-3efaab61495d01f6ff77a1e75195bd8b009e71c9ea53e3278274cb5edf929c44L501-L507)
- Getting all current FMA's icons added to index.ts
- Updating the generate-icons.sh script to automatically add icons to
the index.ts file
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Co-authored-by: Jahziel Villasana-Espinoza <jahziel@fleetdm.com>
