Add test cases for DeleteAppointment and FindAppointment and changed Ui to allow for text wrapping

[chonguschonguschongus]

Add more test cases for FindAppointment and DeleteAppointment and changed Ui to allow for text wrapping in the cards.

In the midst of writing these, discovered that getTypicalAddressBook() was not getting the appointments properly. Made the change and edited some other test cases acoordingly so it passes.

[codecov]

Codecov Report

Merging #227 (5a2f363) into master (4fa3adc) will increase coverage by 6.76%.
Report is 11 commits behind head on master.
The diff coverage is 85.71%.

@@             Coverage Diff              @@
##             master     #227      +/-   ##
============================================
+ Coverage     72.28%   79.05%   +6.76%     
- Complexity      725      785      +60     
============================================
  Files           112      112              
  Lines          2555     2530      -25     
  Branches        275      272       -3     
============================================
+ Hits           1847     2000     +153     
+ Misses          601      439     -162     
+ Partials        107       91      -16     

Files	Coverage Δ
.../address/logic/commands/AddAppointmentCommand.java	100.00% <ø> (+27.45%)	⬆️
src/main/java/seedu/address/model/AddressBook.java	81.25% <ø> (+9.60%)	⬆️
src/main/java/seedu/address/model/Model.java	100.00% <ø> (ø)
.../main/java/seedu/address/model/person/Patient.java	93.02% <100.00%> (+4.65%)	⬆️
.../java/seedu/address/storage/JsonAdaptedDoctor.java	100.00% <100.00%> (ø)
...java/seedu/address/storage/JsonAdaptedPatient.java	100.00% <100.00%> (+6.25%)	⬆️
.../java/seedu/address/storage/JsonAdaptedPerson.java	100.00% <ø> (+10.00%)	⬆️
...rc/main/java/seedu/address/model/ModelManager.java	93.00% <75.00%> (+11.09%)	⬆️

... and 20 files with indirect coverage changes

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[tanveersingh10]

lgtm

[kohkaijie]

LGTM. Good working on fixing the UI bug and adding new test cases!