chore(build): Add sourcemaps to commonjs and es packages

[miroslavstastny]

In order to improve debugging experience, add sourcemapping to ts(x) to commonjs and es packages.

Before

After

[DustyTheBot]

	Warnings
⚠️	There are no updates provided to CHANGELOG. Ensure there are no publicly visible changes introduced by this PR.
⚠️	Package (or peer) dependencies changed. Make sure you have approval before merging!

Changed dependencies are detected.

Changed dependencies in build/package.json

package	before	after
gulp-sourcemaps	-	^2.6.5

Perf comparison

Status	Scenario	Fluent TPI	Fabric TPI	Ratio	Iterations	Ticks
🔧	Avatar.Fluent	0.57	0.41	1.39:1	2000	1146
🔧	Button.Fluent	1.28	0.18	7.11:1	1000	1278
🔧	Checkbox.Fluent	1.61	0.34	4.74:1	1000	1609
🔧	Dialog.Fluent	0.42	0.22	1.91:1	5000	2118
🔧	Dropdown.Fluent	4.2	0.51	8.24:1	1000	4199
🔧	Icon.Fluent	0.3	0.05	6:1	5000	1495
🔧	Image.Fluent	0.13	0.1	1.3:1	5000	645
🔧	Slider.Fluent	2.41	0.4	6.03:1	1000	2408
🔧	Text.Fluent	0.06	0.02	3:1	5000	291
🦄	Tooltip.Fluent	0.37	19.98	0.02:1	5000	1841

🔧 Needs work     🎯 On target     🦄 Amazing

Perf tests with no regressions

Scenario	Current PR Ticks	Baseline Ticks	Ratio
ListMinimalPerf.default	868	675	1.29:1
LoaderMinimalPerf.default	2563	2052	1.25:1
DropdownManyItemsPerf.default	530	457	1.16:1
HeaderSlotsPerf.default	1369	1200	1.14:1
CustomToolbarPrototype.default	4412	3872	1.14:1
ChatDuplicateMessagesPerf.default	578	531	1.09:1
MenuButtonMinimalPerf.default	1516	1396	1.09:1
StatusMinimalPerf.default	897	824	1.09:1
VideoMinimalPerf.default	845	780	1.08:1
TextMinimalPerf.default	268	251	1.07:1
AttachmentSlotsPerf.default	3812	3602	1.06:1
RadioGroupMinimalPerf.default	405	381	1.06:1
EmbedMinimalPerf.default	6550	6227	1.05:1
FlexMinimalPerf.default	339	323	1.05:1
ImageMinimalPerf.default	495	472	1.05:1
AccordionMinimalPerf.default	201	193	1.04:1
FormMinimalPerf.default	703	674	1.04:1
SliderMinimalPerf.default	1888	1813	1.04:1
Text.Fluent	291	279	1.04:1
ItemLayoutMinimalPerf.default	1747	1688	1.03:1
LabelMinimalPerf.default	1708	1658	1.03:1
ReactionMinimalPerf.default	2490	2429	1.03:1
Icon.Fluent	1495	1450	1.03:1
BoxMinimalPerf.default	201	197	1.02:1
ChatMinimalPerf.default	1750	1723	1.02:1
RefMinimalPerf.default	148	145	1.02:1
Dialog.Fluent	2118	2085	1.02:1
Image.Fluent	645	635	1.02:1
Slider.Fluent	2408	2371	1.02:1
AvatarMinimalPerf.default	576	570	1.01:1
ButtonMinimalPerf.default	1220	1203	1.01:1
HierarchicalTreeMinimalPerf.default	786	776	1.01:1
TreeMinimalPerf.default	1008	1002	1.01:1
DropdownMinimalPerf.default	3880	3892	1:1
MenuMinimalPerf.default	1897	1905	1:1
ProviderMergeThemesPerf.default	1075	1074	1:1
CheckboxMinimalPerf.default	6891	6949	0.99:1
GridMinimalPerf.default	809	814	0.99:1
IconMinimalPerf.default	1069	1081	0.99:1
Tooltip.Fluent	1841	1868	0.99:1
AnimationMinimalPerf.default	440	450	0.98:1
ListCommonPerf.default	1167	1196	0.98:1
ProviderMinimalPerf.default	560	572	0.98:1
CarouselMinimalPerf.default	1932	1986	0.97:1
DividerMinimalPerf.default	1036	1066	0.97:1
Dropdown.Fluent	4199	4324	0.97:1
AlertMinimalPerf.default	535	555	0.96:1
PopupMinimalPerf.default	352	366	0.96:1
TextAreaMinimalPerf.default	2989	3107	0.96:1
TooltipMinimalPerf.default	2724	2838	0.96:1
ButtonSlotsPerf.default	1754	1844	0.95:1
InputMinimalPerf.default	933	987	0.95:1
ChatWithPopoverPerf.default	600	638	0.94:1
PortalMinimalPerf.default	241	259	0.93:1
HeaderMinimalPerf.default	431	469	0.92:1
Avatar.Fluent	1146	1247	0.92:1
SplitButtonMinimalPerf.default	11093	12223	0.91:1
DialogMinimalPerf.default	1736	1920	0.9:1
Button.Fluent	1278	1419	0.9:1
AttachmentMinimalPerf.default	940	1070	0.88:1
SegmentMinimalPerf.default	1147	1306	0.88:1
TableMinimalPerf.default	552	639	0.86:1
LayoutMinimalPerf.default	521	623	0.84:1
Checkbox.Fluent	1609	1906	0.84:1
ToolbarMinimalPerf.default	711	860	0.83:1

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