feat: configprovider: add support for gradient and individual component theme containers

[dkilgore-eightfold]

SUMMARY:

• Adds base palette linear-gradient css variables and mappings
• Updates ConfigProvider to add a Gradient context and gradient prop
• Updates ConfigProvider to add a Theme context
• Updates legacy theme engine to support gradients
• Updates styleGenerator to add gradient theme and individual scoped component theme containers support
• Adds gradient theme support to Accordion, Button, Carousel, Dialog, InfoBar, LinkButton, Modal, Pagination, Panel, PanelHeader, Pill, Snackbar, Stepper, Stat, and Upload
• Adds component container theme support to Accordion, Breadcrumb, Button, Carousel, CheckBox, Dialog InfoBar, Link, LinkButton, MatchScore Modal, Pagination, Panel, PanelHeader, PersistentBar, Progress, RadioButton, Tabs, TextArea, TextInput, SearchBar, Select, Slider, Snackbar, and Upload (Pill SkillTag, SkillBlock, Stat and Stepper use a less efficient legacy implementation - keeping 'as-is' for now)
• Adds scoped theme modules to components that need their own containers
• Adds Copilot SVGs and exports them
• Adds Copilot Icons
• Ensure border-radius is 0 in fullscreen Modal
• Fixes bug in Pill component where the Button counter was not being themed properly and its insets were wrong
• Updates MenuItemButton styles to align a bit better with Button
• Adds colorInvert prop and its styles to Tabs pill variant.
• Exports any types that were missed which were being used in the ConfigProvider stories
• Exports Gradient and Theme context providers and their types
• Fixes bug in Button where its counter spacing was too tight when there was no label
• Fixes bug in TwoStateButton where its text color was using accent palette instead of bluegreen
• Updates themes.ts so its arrays don't need to be reverse() and the hexidecimal casing is in line with the modules
• Adds custom gradient theme support
• Updates InfoBar to use background, rather than background-color
• Updates InputStatus to include highlight and applies updates status styles to TextArea, TextInput, SearchBar, Select, TimePicker, and DatePicker
• Updates stories
• Updates --violet-color-30 to match the design specification
• Updates some semantic variable colors to match the latest design specification in Button

An example where a button was changed to ButtonVariant.Primary with gradient, theme="blueViolet" and configContextProps={{ noThemeContext: true }} in a local test.

Storybook https://github.com/EightfoldAI/octuple/assets/99700808/9222e250-f487-4f2b-8dc3-6277397fefdd

JIRA TASK (Eightfold Employees Only):

ENG-78260 ENG-78250 ENG-77347 ENG-77346 ENG-76044 ENG-76043 ENG-76042

CHANGE TYPE:

• [x] Bugfix Pull Request
• [x] Feature Pull Request

TEST COVERAGE:

• [ ] Tests for this change already exist
• [x] I have added unittests for this change

TEST PLAN:

Pull the PR branch and run yarn and yarn storybook. Verify the ConfigProvider, Accordion, Button, Carousel, CheckBox, Dialog, InfoBar, Link, LinkButton, MatchScore, Modal, Pagination, Panel, PersistentBar, Pill, Progress, RadioButton, TextArea, TextInput, SearchBar, Select, Slider, Snackbar, Stepper, Timeline, Tabs, TimePicker,DatePicker, and Upload stories behave as expected.

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[codecov[bot]]

Codecov Report

Attention: 177 lines in your changes are missing coverage. Please review.

Comparison is base (e828a69) 84.83% compared to head (dc1ec70) 84.37%.

Files	Patch %	Lines
src/components/PersistentBar/PersistentBar.tsx	34.28%	23 Missing :warning:
...omponents/ConfigProvider/Theming/styleGenerator.ts	62.50%	18 Missing :warning:
src/components/Panel/PanelHeader.tsx	0.00%	18 Missing :warning:
src/components/Upload/Cropper/Cropper.tsx	0.00%	15 Missing :warning:
src/components/Slider/Slider.tsx	83.72%	14 Missing :warning:
src/components/LinkButton/LinkButton.tsx	59.25%	11 Missing :warning:
src/components/Pagination/Pagination.tsx	84.21%	6 Missing and 3 partials :warning:
src/components/Select/Select.tsx	75.00%	6 Missing :warning:
src/components/Inputs/TextInput/TextInput.tsx	87.17%	5 Missing :warning:
src/components/Button/Button.tsx	66.66%	4 Missing :warning:
... and 32 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #783 +/- ## ========================================== - Coverage 84.83% 84.37% -0.47% ========================================== Files 999 1008 +9 Lines 19552 19866 +314 Branches 7302 7530 +228 ========================================== + Hits 16587 16762 +175 - Misses 2885 3022 +137 - Partials 80 82 +2 ```

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