Updated main.xml

Changed margins.
Updated drugs.xml

Changed margins.
Updated details.xml

Changed margins.
Updated DrugsActivity

Changed which next activity is. Before PharmaciesActivity2 and now
ChoosenDrugActivity.
Updated ChoosenDrugActivity

Added method for next-button and a bundle to get info from the activity
before this activity.
Updated choosen_drug.xml

Added textviews to show info about the drug.
Updated PharmaciesActivity2

Changed the name on the key for knowing if it is a drug with or without
drugid.
Updated MainActivity

Changed name on the key for knowing if it is a drug with or without
drugid.