feat(AccordionTitle): remove hard icon dependencies

[mnajdova]

Pull request checklist

• Addresses an existing issue: Fixes #0000
• Include a change request file using $ yarn change

Description of changes

This PR removes the internal usage of the Icon component inside the AccordionTitle for the active indicator. The icon that was previously rendered as submenu indicator, is now added as part of the styles in the theme. See more details regarding this effort on #12145

BREAKING CHANGE

The indicator prop in the AccordionTitle component is now ShorthandValue<BoxProps> instead of ShorthandValue<IconProps>

Microsoft Reviewers: Open in CodeFlow

[size-auditor]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: cdb0f04597186741918262aeef64bbfb6b913911 (build)

[msft-github-bot]

Perf Analysis

No significant results to display.

All results

Scenario	Master Ticks	PR Ticks	Status
BaseButton	775	747
BaseButton (experiments)	1009	1022
DefaultButton	1013	1036
DefaultButton (experiments)	2031	1972
DetailsRow	3587	3484
DetailsRow (fast icons)	3512	3543
DetailsRow without styles	3212	3327
DocumentCardTitle with truncation	1609	1633
MenuButton	1377	1457
MenuButton (experiments)	3667	3513
PrimaryButton	1272	1233
PrimaryButton (experiments)	2035	2057
SplitButton	2829	2940
SplitButton (experiments)	6556	6804
Stack	447	453
Stack with Intrinsic children	1004	1016
Stack with Text children	4079	4094
Text	403	400
Toggle	858	858
Toggle (experiments)	2284	2342
button	68	75

Perf Analysis (Fluent)

Perf comparison

Status	Scenario	Fluent TPI	Fabric TPI	Ratio	Iterations	Ticks
🔧	Avatar.Fluent	0.57	0.52	1.1:1	2000	1131
🎯	Button.Fluent	0.16	0.23	0.7:1	1000	161
🔧	Checkbox.Fluent	0.96	0.41	2.34:1	1000	956
🔧	Dialog.Fluent	0.4	0.24	1.67:1	5000	1983
🔧	Dropdown.Fluent	4.15	0.55	7.55:1	1000	4149
🔧	Icon.Fluent	0.17	0.05	3.4:1	5000	872
🦄	Image.Fluent	0.07	0.11	0.64:1	5000	348
🔧	Slider.Fluent	1.57	0.41	3.83:1	1000	1567
🔧	Text.Fluent	0.08	0.02	4:1	5000	405
🦄	Tooltip.Fluent	0.13	19.79	0.01:1	5000	654

🔧 Needs work     🎯 On target     🦄 Amazing

Perf tests with no regressions

Scenario	Current PR Ticks	Baseline Ticks	Ratio
ListWith60ListItems.default	210	185	1.14:1
PortalMinimalPerf.default	346	313	1.11:1
StatusMinimalPerf.default	360	332	1.08:1
ListNestedPerf.default	998	930	1.07:1
ButtonMinimalPerf.default	149	141	1.06:1
HierarchicalTreeMinimalPerf.default	1233	1167	1.06:1
TableMinimalPerf.default	796	753	1.06:1
ChatWithPopoverPerf.default	586	556	1.05:1
RefMinimalPerf.default	223	212	1.05:1
TextMinimalPerf.default	427	407	1.05:1
BoxMinimalPerf.default	325	314	1.04:1
ChatMinimalPerf.default	544	524	1.04:1
FlexMinimalPerf.default	265	256	1.04:1
InputMinimalPerf.default	1114	1070	1.04:1
PopupMinimalPerf.default	466	447	1.04:1
AttachmentMinimalPerf.default	877	852	1.03:1
ChatDuplicateMessagesPerf.default	409	396	1.03:1
DropdownManyItemsPerf.default	341	332	1.03:1
GridMinimalPerf.default	891	863	1.03:1
IconMinimalPerf.default	411	400	1.03:1
LoaderMinimalPerf.default	1136	1106	1.03:1
Avatar.Fluent	1131	1094	1.03:1
Dropdown.Fluent	4149	4037	1.03:1
Image.Fluent	348	338	1.03:1
AvatarMinimalPerf.default	533	520	1.02:1
ProviderMinimalPerf.default	724	713	1.02:1
TextAreaMinimalPerf.default	3411	3350	1.02:1
ToolbarMinimalPerf.default	1250	1223	1.02:1
Checkbox.Fluent	956	936	1.02:1
AnimationMinimalPerf.default	651	647	1.01:1
ButtonSlotsPerf.default	730	722	1.01:1
DialogMinimalPerf.default	1817	1806	1.01:1
FormMinimalPerf.default	981	968	1.01:1
HeaderMinimalPerf.default	585	582	1.01:1
ItemLayoutMinimalPerf.default	2170	2146	1.01:1
LabelMinimalPerf.default	377	372	1.01:1
MenuMinimalPerf.default	2251	2229	1.01:1
SegmentMinimalPerf.default	1272	1262	1.01:1
TreeMinimalPerf.default	1230	1220	1.01:1
Text.Fluent	405	401	1.01:1
LayoutMinimalPerf.default	752	755	1:1
ListMinimalPerf.default	467	468	1:1
MenuButtonMinimalPerf.default	2110	2114	1:1
SliderMinimalPerf.default	1588	1593	1:1
SplitButtonMinimalPerf.default	13765	13800	1:1
CustomToolbarPrototype.default	4098	4085	1:1
AttachmentSlotsPerf.default	3372	3392	0.99:1
DividerMinimalPerf.default	1039	1045	0.99:1
DropdownMinimalPerf.default	3590	3633	0.99:1
HeaderSlotsPerf.default	1748	1760	0.99:1
RadioGroupMinimalPerf.default	627	633	0.99:1
ReactionMinimalPerf.default	2640	2671	0.99:1
TooltipMinimalPerf.default	903	911	0.99:1
CarouselMinimalPerf.default	1971	2008	0.98:1
ProviderMergeThemesPerf.default	1374	1407	0.98:1
Icon.Fluent	872	887	0.98:1
Slider.Fluent	1567	1595	0.98:1
Tooltip.Fluent	654	670	0.98:1
CheckboxMinimalPerf.default	3912	4025	0.97:1
EmbedMinimalPerf.default	6169	6357	0.97:1
ListCommonPerf.default	1051	1086	0.97:1
VideoMinimalPerf.default	997	1038	0.96:1
Button.Fluent	161	167	0.96:1
Dialog.Fluent	1983	2059	0.96:1
AccordionMinimalPerf.default	234	250	0.94:1
AlertMinimalPerf.default	546	590	0.93:1
ImageMinimalPerf.default	350	380	0.92:1
TreeWith60ListItems.default	231	261	0.89:1