Input: Add primary-font to input elements designed to display text

[austinoneil]

Description

Adds font-family: $primary-font to input elements that display some form of text.

References #2353

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

How Has This Been Tested?

Added the following to index.html:

<modus-text-input
      label="Text Input (Search Icon)"
      placeholder="Placeholder"
      include-search-icon
      required></modus-text-input>
    <modus-number-input
      label="Number Input Demo 1"
      placeholder="Placeholder"
      required="true"></modus-number-input>
    <modus-date-picker
      helper-text="mmm dd, yyyy"
      label="Single date"
      allowed-chars-regex="[\d\/]"
      format="mmm dd, yyyy"
      value="2022-12-22"></modus-date-input>
      <modus-time-picker
        label="Time"
        ampm="true"
        value="23:39"
        placeholder="12:00 AM"
        helper-text="hh:mm AM/PM"></modus-time-picker>

Also put "Times New Roman" as the first element in $primary-font (just as a visual indicator that my changes are, in fact, effective and the inspector isn't mistaken)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

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[austinoneil]

I have squashed this into one commit as requested in the contributing guidelines.