Tasks:

- add a portfolio
- delete a portfolio
- select a portfolio
	- refresh it to get updates on positions
	- add new positions
	- edit positions
	- delete positions

main view
---------
add portfolio button
clickable list of portfolios
click portfolio to go to single portfolio view
long hold portfolio to get options:
-delete

single portfolio view
-----------------
add ticker button
refresh button
list of:
	ticker, price, gain/loss, time
long hold ticker to get options:
-edit
-delete

there should be a config somewhere:
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to configure which columns are shown in the single portfolio view