[Vue] migrate periods service to typescript & introduce frontend unit testing for vue & migrate periods.spec.js (#18092)

* initial periods service conversion

* get period service migration to compile

* getLastNRange was public static

* fix an issue, switch angularjs tests to use chrome headless and hope it works

* remove phantomjs requirement

* get vue unit testing to work w/ jest (only option right now, the mocha plugin is not compatible w/ vue 3 and no one is working on making it compatible)

* more test code

* progress

* more progress

* more progress, single passing test

* finish converting periods.spec.js and get test to pass

* remove use of any in periods service and rebuilt corehome

* add missing file headers

* fix run-once.sh

* debug travis build

* remove debugging code & update submodule

* update submodule

* more travis debugging

* install npm dependencies in "install-ubuntu.sh"

* use latest node

* try this again

* typos

* more debugging

* more debugging

* testing something

* testing something else

* testing something else

* testing something else

* testing something else

* testing something else

* testing something else

* testing something else

* testing something else

* testing something else

* testing something else

* revert travis.yml changes

* update some expected screenshots

* releasechecklisttest fix

1 files changed, 8 insertions, 0 deletions

diff --git a/plugins/CoreVue/types/index.d.ts b/plugins/CoreVue/types/index.d.ts
new file mode 100644
index 0000000000..733b7ab13f
--- /dev/null
+++ b/plugins/CoreVue/types/index.d.ts
@@ -0,0 +1,8 @@
+interface PiwikGlobal {
+  timezoneOffset: number;
+  addCustomPeriod: <T>(name: string, periodClass: T) => void;
+}
+
+let piwik: PiwikGlobal;
+
+function _pk_translate(translationStringId: string, values: string[]): string;