Update UI of Temperament Widget (#2776)

* Made cursor as Pointer on Clear button in temperament widget

* Made cursor as Pointer on Done and Back buttons in temperament widget

* Centrally Aligned the button-texts

* Update Octave Space and Done Buttons

* Removed unneccesary onmouseover functions

* Capitalised first letter of Titles

* Verically aligned Play buttons

* Centered the Circle of Notes in Arbitrary Tab

* Updates Close buttons in Note infos

* Updated buttons

* Fixed errors

* Refactored some code and updated UI in Add Pitches section

* Update Done button

* Fixed Linting errors

* Format code

* Improve notes table styling

Co-authored-by: Anindya Kundu <[email protected]>