feat(Dropdown): Freeform search should be case insensitive

[jurokapsiar]

Freeform search should not care about case sensitivity.

[codesandbox-ci[bot]]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 55309a9ecd9a3afeaf9ea36c5b33b48b07d0ea82:

Sandbox	Source
@fluentui/react 8 starter	Configuration
@fluentui/react-components 9 starter	Configuration

[size-auditor[bot]]

Asset size changes

Project	Bundle	Baseline Size	New Size	Difference
office-ui-fabric-react	fluentui-react-northstar-Dropdown	204.246 kB	204.462 kB	216 bytes

 Over Tolerance (1024 B)  Over Baseline  Below Baseline  New   Removed 1 kB = 1000 B

Baseline commit: d6837b7a5af8838945316aff35870c525f0c3753 (build)

[fabricteam]

📊 Bundle size report

_{🤖 This report was generated against d6837b7a5af8838945316aff35870c525f0c3753}

[fabricteam]

Perf Analysis (@fluentui/react-northstar)

Perf tests with no regressions

Scenario	Current PR Ticks	Baseline Ticks	Ratio
ChatWithPopoverPerf.default	314	262	1.2:1
ButtonMinimalPerf.default	138	117	1.18:1
TreeWith60ListItems.default	136	116	1.17:1
GridMinimalPerf.default	276	238	1.16:1
TableMinimalPerf.default	331	285	1.16:1
CardMinimalPerf.default	444	389	1.14:1
ListMinimalPerf.default	420	368	1.14:1
StatusMinimalPerf.default	545	483	1.13:1
TableManyItemsPerf.default	1549	1372	1.13:1
RefMinimalPerf.default	167	153	1.09:1
ChatDuplicateMessagesPerf.default	231	213	1.08:1
CarouselMinimalPerf.default	379	353	1.07:1
BoxMinimalPerf.default	283	267	1.06:1
DropdownManyItemsPerf.default	550	518	1.06:1
PopupMinimalPerf.default	528	497	1.06:1
PortalMinimalPerf.default	146	138	1.06:1
AlertMinimalPerf.default	219	208	1.05:1
ButtonOverridesMissPerf.default	1030	984	1.05:1
LoaderMinimalPerf.default	560	531	1.05:1
SegmentMinimalPerf.default	282	268	1.05:1
CheckboxMinimalPerf.default	1714	1649	1.04:1
RosterPerf.default	1749	1679	1.04:1
ReactionMinimalPerf.default	309	298	1.04:1
TreeMinimalPerf.default	670	643	1.04:1
VideoMinimalPerf.default	605	584	1.04:1
InputMinimalPerf.default	926	901	1.03:1
ListWith60ListItems.default	511	503	1.02:1
SliderMinimalPerf.default	1310	1280	1.02:1
SplitButtonMinimalPerf.default	3505	3444	1.02:1
TooltipMinimalPerf.default	1937	1902	1.02:1
AvatarMinimalPerf.default	153	152	1.01:1
MenuMinimalPerf.default	697	692	1.01:1
RadioGroupMinimalPerf.default	365	361	1.01:1
AccordionMinimalPerf.default	112	112	1:1
ButtonSlotsPerf.default	451	451	1:1
DropdownMinimalPerf.default	2061	2059	1:1
HeaderSlotsPerf.default	604	605	1:1
ProviderMergeThemesPerf.default	941	942	1:1
AttachmentMinimalPerf.default	120	121	0.99:1
AttachmentSlotsPerf.default	878	891	0.99:1
DatepickerMinimalPerf.default	4585	4624	0.99:1
MenuButtonMinimalPerf.default	1383	1399	0.99:1
TextAreaMinimalPerf.default	391	393	0.99:1
HeaderMinimalPerf.default	288	294	0.98:1
ProviderMinimalPerf.default	333	339	0.98:1
ToolbarMinimalPerf.default	748	762	0.98:1
ChatMinimalPerf.default	577	597	0.97:1
FormMinimalPerf.default	264	271	0.97:1
TextMinimalPerf.default	265	274	0.97:1
EmbedMinimalPerf.default	2799	2921	0.96:1
ImageMinimalPerf.default	291	304	0.96:1
IconMinimalPerf.default	525	554	0.95:1
DialogMinimalPerf.default	581	624	0.93:1
ItemLayoutMinimalPerf.default	866	929	0.93:1
ListCommonPerf.default	470	505	0.93:1
CustomToolbarPrototype.default	2066	2222	0.93:1
AnimationMinimalPerf.default	405	439	0.92:1
ListNestedPerf.default	412	450	0.92:1
DividerMinimalPerf.default	257	281	0.91:1
LabelMinimalPerf.default	273	300	0.91:1
FlexMinimalPerf.default	210	234	0.9:1
SkeletonMinimalPerf.default	245	278	0.88:1
LayoutMinimalPerf.default	251	291	0.86:1