Bug fix for username cache issue in user menu, progressive enhancement improvements to cd-dropdown and OCHA services

fix username cache issue in user menu #137
progressive enhancement improvements to cd-dropdown #134
use JS to move OCHA services to header #124

Update CC block in footer and button component

Update CC logo to new logo #128
Improves translation of CC text and link in footer
Improve button component #131

Fixes OCHA Service "See all" button to display full width on mobile

#126 add display to anchors styled like buttons so the width property works
fixes ocha service button to display full width on mobile, as before

Translation tags, button colour scheme, additional breakpoint

#120 Translation tags in header and footer
#121 Add xxl breakpoint as SASS variable and Breakpoint
#122 #123 #125 HSL Button colour scheme and OCHA Service button

Fix language switcher block

#118 Fix language switcher block dropdown
#109 Dependency update

Accessibility improvements based on wave, lighthouse, Firefox testing, and dependency updates

Accessibility improvements based on wave, lighthouse, Firefox testing #107 #108
Dependency update #109

Improve accessibility, validity, and consistency, provide better defaults

Security updates #88 #94 #95
Accessibility improvements #90 #91 #97
Valid HTML improvements #92
Better defaults #96 #102 #103 #105
Improve consistency #89 #101
Add cd-dropdown to global library. Fix focus on search--inline using cd-dropdown, remove unneeded JS files from search #93

Improve readme, preprocess form examples and search--inline variant

#85 Readme improvemens
#86 Remove data-cd-hidden attributes from preprocess form function example, since new cd-dropdown add this attribute with JS, implement search--inline variant using CSS custom property --dropdown inline with recent cd-dropdown refactor

Improve cd-filter component (including renaming), IE fixes, update readme with latest changes to cd-dropdown

Improvements to no-js style for menu #81
Improve Table and Filter components, including IE support #82 #83 *Renamed cd-filters to cd-filter (singular)
Update README with link to documentation and more about cd-dropdown #84
Complimentary PR in subtheme repo pending UN-OCHA/common_design_subtheme#7 to demonstrate cd-dropdown implementation on any div (sidebar region in this case)

Refactor cd-dropdown component to cater for toggles on mobile, improve cd-table component

Refactor cd-dropdown to allow for condition where dropdown is created depending on media query, and improve overall robustness.
#75 prevents conflicts with Drupal collapse.js
#76 and #78 refactor as described, includes CSS custom properties. Read description on #76 for more info

Also update to styles and markup for cd-table component to include caption and default styles #79