Convert to Glimmer component (#772)

* Initial commit

* Adds the hacky way to find the parent element

* Removes the ember-classic-decorator and ember-decorators dependencies

* Reduces the "did-update" calls number

* Fixes the "onTargetOrTriggerChanged" listener; Adds the test

* Uses "meta" tag instead of the "wbr" to render nothing

* makes the helper "meta" element hidden

* Prevents from rendering the `meta` in case of "renderInPlace"; Replaces the ember-power-select with an browser select to avoid conflicts.

* Fixes the ember-lts-3.16 issue for ember-try

* Moves `sass` back to the direct dependencies

* Sets package.json version to 2.0.0 as no "v2" release happened yet

* Adds autoUpdate tracking

Author: pzubar

.github/dependabot.yml

@@ -67,8 +67,5 @@ updates:
     - 5.6.4
     - 5.6.5
     - 5.7.0
-  - dependency-name: ember-power-select
-    versions:
-    - 4.1.3
   commit-message:
     prefix: "[chore]"