Upgrade Keypadder to version 0.3.0 (#759)

[SMerrony]
  * Feature:    Add bg config option for button background colour
  * Feature:    Add fontsize config option per tab
  * Docs:       Update for new features
  * Docs:       Enhance example/keypad.toml to use new features, add PokerTH map
  * Bugfix:     Don't truncate mnemonics shown via --dumpkeys
  * Internal:   Reduce size of HTML/JavaScript for main page

  [mgrojo]
  * Feature:    Add big Maths symbols example config

index/ke/keypadder/keypadder-0.3.0.toml

@@ -0,0 +1,43 @@
+name = "keypadder"
+description = "Programmable virtual keypad for your Linux desktop"
+long-description = """
+# Overview
+
+Keypadder runs on your desktop machine and provides a mobile/tablet-friendly
+web page that you use from a tablet or phone to send frequently-used, awkward,
+or difficult-to-remember key combinations to the currently-focused desktop application.
+
+Amongst other things, the author uses it with Thunderbird and LibreOffice Writer 
+for typing accented characters, with MuseScore to provide a keypad similar to a 
+certain commercial score writing application, and with Firefox for accented 
+characters and Emojis in social media.
+
+It's a great use for one of those old smartphones or tablets you have lying in that drawer!
+"""
+version = "0.3.0"
+tags = ["linux", "keyboard", "mobile", "programmable", "tablet", "macro", "keypad", "macropad"]
+
+authors = ["Stephen Merrony"]
+maintainers = ["Stephen Merrony <merrony@gmail.com>"]
+maintainers-logins = ["SMerrony"]
+
+licenses = "GPL-3.0-or-later"
+website = "https://github.com/SMerrony/keypadder"
+
+executables = ["keypadder"]
+
+[available.'case(os)']
+linux   = true
+macos   = false
+windows = false
+'...'   = false
+
+[[depends-on]]
+aws = "^23.0.0"
+[[depends-on]]
+ada_toml = "~0.3.0"
+
+[origin]
+commit = "104c359ac85aa4ad45ff8231cb092afd0dd894b5"
+url = "git+https://github.com/SMerrony/keypadder.git"
+