Remove tooltips that use popover attribute

Merge pull request #313 from Rise-Vision/fix/issue-3247

Remove tooltips that use popover attribute

Update proxy server url in url-field directive

Merge pull request #308 from Rise-Vision/chore/proxy-server-url

Update proxy server url in url-field directive

Always force https protocol validity for url field

Merge pull request #305 from Rise-Vision/fix/issue-137

Always force https protocol validity for url field

Disable url input when testing existence of file

Merge pull request #301 from Rise-Vision/chore/fix-insecure

Disable url input when testing existence of file

Show error message if custom url is insecure

Merge pull request #300 from Rise-Vision/chore/insecure

Show error message if custom url is insecure

Verify a valid video url if file exists

Merge pull request #299 from Rise-Vision/fix/issue-291

Verify a valid video url if file exists

Change message for user when url load attempt fails

Merge pull request #298 from Rise-Vision/fix/issue-234

Change message for user when url load attempt fails

Show warning if selected folder is empty

Merge pull request #294 from Rise-Vision/fix/issue-231

Fix for #231. Show warning if selected folder is empty.

Update file selector to use common-header subscription-status component

Merge pull request #281 from Rise-Vision/chore/subscription-status

Update file selector to use common-header subscription-status component

Fixes URL field hang

Fixes widget-web-page issue 98, but should be imported by other widgets that uses url-field to also fix the same issue.