Major Changes

Create the Comic book title card
- Inspired by the aesthetic of Comic Books - features two adjustable "banners" at the top and bottom of the Card - for example:
- The banner positions, fill and edge colors, vertical shift, and rotation can all be adjusted via extras - for example, here is an animation of the adjustable rotation and vertical positioning:
- The rotation of banners can be "randomized" to give more aesthetic variation between cards - randomization is specified and bounded by random[lower, upper] using the angle of rotation, for example:
```
extras:
  title_text_rotation_angle: random[-4, 4]
  index_text_rotation_angle: random[-2, 2]
```
- The above YAML would pick a random angle between -4 and 4 for the title text banner, and -2 and 2 for the index text banner
- Specified via comic book as the card_type
- Closed #377
Add the episode_text_font, episode_text_font_size, episode_text_vertical_shift, and frame_width extras to the Tinted Frame card
Permit custom Font files in the Roman Numeral card
Add support for interword_spacing to all cards
- Specified via font attribute, like so:
```
font:
  interword_spacing: 10 # Any number here 
```
- Remove interword_spacing extra from Olivier and Frame cards

Major Fixes

Correct has_series evaluation of Jellyfin and Emby Series
Correct frame boundaries when using a scaled logo in the Tinted Frame card
Correctly apply Font vertical offsets to Tinted Glass card (text and glass box were opposite)
Parse custom Font kerning in Divider cards

Add box_color extra to Landscape card to specify a box color separately from the text color
Add blur_profile extra to Cutout card to specify how much blurring is used on the number edges (when enabled)
Add thank you message & auto-updated image of current and past sponsors to README
Parse interline spacing in Roman Numeral cards
Parse custom Font interline spacing, interword spacing, and kerning in Cutout card
Add divider_color extra to Divider card

Fix typo in WebInterface log message
Add the White Border card to the README
Properly detect custom Font files and interline spacings in Poster card archives