Size of tabs/window

I increased the default size of two tabs where the controls were hidden since the window was too small.
I have set the form to allow resizing, and changed the anchor points of certain controls so that you can resize the window to enlarge the lists, e.g. the item list in the inventory tab. You may want to check that all objects are displayed at runtime however.

The only problem I have come up with (other than some tabs look a bit weird in the designer) is the tabs with many objects, i.e. the Inventory tab and the Bank/Safe tab are VERY laggy when you resize them, aulthough this may have been since I was running it in Debug and not Release.

I reverted the third commit since those changes are personal preference, and I didn't know how to submit a PR without it :/