Fix: SP-272 - Editor doesn't catch first input from user

[Spejbl]

Description of the Change

When user opens a file for a first time and types any character, file editor doesn't gets updated until second try. Same applies when deleting character. This PR should resolve such problem.

[filippsen]

Code: unclear why changing the code assignment in value property relates to this.

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Another example is when selecting all contents from the file and typing in random data. Content gets added at the beginning of the selection instead of replacing the selection.

Steps to reproduce the original issue:

• Select Template -> Hello World
• Press Create Project
• Select any text from README
• Copy the contents with Ctrl/Cmd+C
• Select any line inside the same README file
• Paste the contents with Ctrl/Cmd+V

Before this request, editor copy and paste using shortcuts would work (sometimes), but only after setting focus (unclear if that is always on second try).
With this change it always works on first try.

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There is one side-effect situation which started to happen now when an unsaved file tab is open and the Copy and Paste (or any other action) wouldn't get processed on another (different) tab.

Steps to reproduce:

• Edit a file (e.g. HelloWorld.sol) and leave it unsaved (verify: red Save icon)
• Open README.md from the Explorer
• Select any text from the README
• Copy with Ctrl/Cmd+C
• Select any line inside the same file
• Try to paste with Ctrl/Cmd+V
• Observe no feedback (from any shortcut, command or keystroke)

[Spejbl]

I'm unable to reproduce this issue on Live environment, so this PR might be obsolete.

[javier-tarazaga]

@Spejbl if that is the case then let's close the issue. Btw I tried to reproduce the issue in the Live env and I couldn't manage either.