Add new option in settings - "ACS Style"

[ljubica-milovic]

Background
Just introducing all necessary settings that are needed to comply with ACS style is not enough. We should introduce a user-friendly way for the user to select ACS style.
A new section in the settings "ACS Style" should be added for that purpose.

Requirements

1. A new option in setting should be added called "ACS Style"
   1.1. The section should be placed above "Reset to Select Tool" setting in "General"
   1.2. The user can turn the option "ON" or "OFF"
   1.3. Existing toggle UX should be reused.
   (image for better understanding)
   
   1.4. By default (and upon settings "Reset") the option is disabled.

2. When the user clicks on the toggle a warning message appears: "Selecting ACS Style will change value of certain settings and make them read-only. Do you wish to continue?"
   2.1. "Yes" - warning window is closed, the toggle is ON.
   2.2. "Cancel" - warning window is closed, the toggle is OFF.
   2.3. The default option is "Cancel".

3. If "ACS Style" gets turned ON (just toggle on ON) certain default values and units of measurement for following settings are chosen, and these settings are disabled:

Setting	Setting position	"ACS Style"	Unit of Measurement
Atom coloring	General	OFF
Font	General	Arial
Font size	General	10	pt
Sub font size	General	10	pt
Margin size (new setting)	General	1,6	pt
Image resolution (new setting)	General	600	ppi
Bond length (new setting)	Bonds	14,4	pt
Bond spacing (old name: Double bond width)	Bonds	18	% of width
Bond thickness	Bonds	0,6	pt
Stereo (Wedge) bond width	Bonds	2	pt
Hash spacing (new setting)	Bonds	2,5	pt

4. When "ACS Style" is turned ON (toggle on ON -> Apply at the bottom of the window), positions of all elements on the canvas are recalculated so that they comply with "ACS Style".

5. If "ACS Style" is turned OFF (just toggle on OFF) after it was ON, previously disabled settings are not disabled anymore.

6. A new field "isACSStyle": false is added to the JSON for the Settings

UX
TBD

[AnnaKosol]

To solve this task, it is necessary to implement #5175 and #5176