fix(ace-editor): use monospace fonts by default

[villebro]

SUMMARY

Currently the adhoc popovers use a non-monospaced font on Safari, causing misplaced cursors when the statement contains bolded elements. This was not an issue in SQL Lab, which applied a custom font family. This PR moves the SQL Lab font family config into the main ACE Editor component, ensuring that all editors have the same font family.

AFTER

Now the bolded elements no longer cause the cursor to lag behind:

ace-after.mp4

SQL Lab is unchanged:

BEFORE

Before the cursor would fall behind when there were bolded elements in the statement:

ace-before.mp4

SQL Lab before:

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[villebro]

/testenv up

[michael-s-molina]

LGTM

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