Make Split View Panes Resizable
whitelisting properties to overlay; remove keyword concatenation with root language
add top-level key to package.json to avoid collisions
- implemented alt+click to expand/collapse sub directories
Update strings.js

Minor changes were made to the following sections in order to express the sentence or phrase more fluently for the reader in the native language.
- "ERROR_PREFS_CORRUPT"
- "ERROR_IN_BROWSER" 
- "ERROR_MAX_FILES"
- "ERROR_LAUNCHING_BROWSER_TITLE"
- "ERROR_FETCHING_UPDATE_INFO_MSG"
- "ERROR_QUICK_EDIT_PROVIDER_NOT_FOUND"
- "ERROR_QUICK_DOCS_PROVIDER_NOT_FOUND"
- "ABOUT_TEXT_WEB_PLATFORM_DOCS"
- "CANNOT_WRITE_TEMP"
Update strings.js

Minor changes were made to the following sections in order to express the sentence or phrase more fluently for the reader in the native language.
Merge pull request #9072 from adobe/jeff/sv-resizing

Make Split View Panes Resizable
Merge remote-tracking branch 'upstream/master' into unused-vars

Conflicts:
	src/search/FindReplace.js
	src/utils/ViewUtils.js
Merge remote-tracking branch 'upstream/master' into kai/fix-6558-language-layer

Conflicts:
	src/document/DocumentManager.js
remove unused var
remove unused var in test
Nit: change case in function name.
Merge pull request #9081 from busykai/kai/nit-function-name

Nit: change case in function name.
Update strings.js

Fixed 2 spaces between con and proyectos as per TomMalbran revision.
Implement Pane Headers
Update strings.js
less and scss unit tests
Merge pull request #9083 from adobe/rlim/less-and-scss-tests-squashed

less and scss unit tests
Merge pull request #9082 from adobe/randy/sv-pane-header

Implement Pane Headers
Updated by ALF automation.