Implemented tuner and manual cent adjustment in sampler widget (sugarlabs#4725)

* feat: Add tuner widget with pitch detection and UI components

* remove tuning text and cents decimal

* Added toggle button target selector note opens up pie menu

* completed target pitch mode

* manual cent adjustment feature, added minor changes to the tuner.

* Fix failing tests and remove unused icons

* fix: adjust tuner and cent adjustment UI for maximized window

* Fix code review issues: remove outdated tests, fix SVG paths, and update copyright notices

- Remove test cases with outdated implementation expectations
- Fix SVG icon paths by removing ../ prefix in sampler.js
- Fix indentation for samplerCanvas code
- Add Anvita Prasad DMP'25 to copyright notices in synthutils, sampler, and tuner files

* Fix linting issues and rename sharp.svg

- Fix trailing spaces and indentation
- Change single quotes to double quotes
- Rename sharp.svg to accidental-sharp.svg for consistency
- Remove empty test describe block that was causing failures

* Fix linting issues and finalize implementation

* Trigger CI refresh

* Add temporary aidebugger.js to resolve CI phantom file issue

* Remove temporary aidebugger.js file after CI fix

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Co-authored-by: Anvita Prasad <cs23b1059.iiitdm.ac.in>

Author: AnvitaPrasad