fix(scroll): handle edge case of extremely long messages

Prior commit (6ad8a190) did not properly handle overflow by long (9000 lines) message,
to address this issue, multiple changes were made:
- Add lines recalculation on win_redraw
- Move `prof_buff_t` struct to header file so its lines could be externally changed
- Call win_redraw once overflow is detected: it allows to recalculate sizes in lines and apply changes to the buffer

src/ui/buffer.h

@@ -68,6 +68,12 @@ typedef struct prof_buff_entry_t
     char* id;
 } ProfBuffEntry;
 
+struct prof_buff_t
+{
+    GSList* entries;
+    int lines;
+};
+
 typedef struct prof_buff_t* ProfBuff;
 
 ProfBuff buffer_create();