fix #29511
fix #29421
dont remove elements from container while iterating
Implementation of text swing (step1)

added swing tab

swing settings tab in staff text properties

Implemented step 2 of swing implementation using staff texts

Added call for updateSwing in stafftextproperties

Initial page for dialog changed

System flag enabled for swing parameters

saving and loading with text specified swing implemented

removed extra print statement

fixed formatting

Added groupbox to make the default behavior to no change in swing

fixed indentation in stafftextproperties

fixing conflicts in staff.h

Removed writing of setSwing to file

Removed SwingParameter member from staff and fixed layout of swing tab in dialog

fixed the issue with disabled controls

Added tests for staff text implementation of swing playback

cleaned up the code

Swing playback using staff texts implemented, facilitating local control over swing parameters and tests for the same added

Cleaned up code

Cleaned up code further

Swing Playback using staff texts implemented
Cleaned up code further
Cleaning up code further
Using MScore::division in place of 480 as ticks
Modified test files according to new usage of MScore::division
Removed unwanted printf statements
Using strings to write to xml rather than doubles for swingUnit
Replaced 240 and 120 in terms of MScore::division in stafftext:write
Using TDuration to write to xml
Replaced string literals by TDuration for style parameters
Replaced "off" with "" in style.cpp