Make + open an action sheet instead of row of buttons

[supra08]

we should also make "+" open an action sheet.

Actions (we can discuss/finalize these labels when working on the issue):

Upload a file (cf. webapp tooltip: Upload files) Upload a picture Take a picture Add a video call (cf. webapp tooltip: Add video call)

[supra08]

@dashwave /fix

[rpatil1998]

@dashwave-staging /fix

[rpatil1998]

@dashwave-staging /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix

[rpatil1998]

@dashwave-ci-dev /fix