Minor fixes, added default values

[elsoazemelet]

Closes #789, #790 Connecting: https://github.com/intechstudio/grid-protocol/pull/10

[github-actions[bot]]

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[elsoazemelet]

• [x] Fix element name default value display parsing
• [x] Mouse button defult value 'Left button' is not previewed correctly on init
• [x] Use local definition if possible